litellm/litellm/constants.py
Alexsander Hamir eb5031da1e
[Perf] Fix bottlenecks degrading realtime endpoint performance (#16670)
* Cache realtime websocket request body

Move the realtime request payload builder out of the websocket handler and wrap it with an LRU cache so repeated connections reuse the same bytes object. This keeps the JSON formatting cost down while bounding memory usage.

* Optimize realtime websocket caching

Refactored /v1/realtime to use cached helpers for both the JSON body and query params, introduced a reusable request-scope template, and optimized header handling to avoid redundant work.

* Refine realtime websocket header handling

* Reuse websocket scope headers in auth

* Refactor realtime request body helper

Move the realtime request body formatter into proxy common utils so it can be reused across modules. Reuse it in the websocket auth flow to share LRU caching and avoid ad hoc byte builders.

* fix: revert to old pattern

The old pattern was necessary, we can just return the optimized function instead.

* Reuse SSL context for realtime

Create a shared SSLContext for OpenAI realtime websocket dials and pass it into websockets.connect so we stop re-reading verify paths on every session.

* feat: reuse shared TLS context for realtime websockets

- add `SHARED_REALTIME_SSL_CONTEXT` helper so all realtime websocket clients share the same TLS settings
- wire the shared context into OpenAI, Azure, custom HTTPX handlers, and realtime health checks
- update realtime tests to assert that the expected SSL context is passed to `websockets.connect`

This keeps TLS configuration consistent and avoids recreating SSL contexts per connection.

* Reuse HTTP SSL context for realtime

Remove the standalone realtime SSL helper, expose a shared context directly from the HTTP handler, and point all realtime websocket clients and tests to it. Add the websocket header comparison tool.

* Lazy-load shared realtime SSL context

Fix circular imports introduced by eagerly instantiating the shared TLS context. Make the HTTP handler lazily create the context and have realtime clients/tests fetch it on demand, keeping configuration consistent without breaking startup.

* add: unit test for realtime LRU caches

* fix: merge conflict with imports
2025-11-22 10:01:02 -08:00

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import os
from typing import List, Literal
DEFAULT_HEALTH_CHECK_PROMPT = str(
os.getenv("DEFAULT_HEALTH_CHECK_PROMPT", "test from litellm")
)
AZURE_DEFAULT_RESPONSES_API_VERSION = str(
os.getenv("AZURE_DEFAULT_RESPONSES_API_VERSION", "preview")
)
ROUTER_MAX_FALLBACKS = int(os.getenv("ROUTER_MAX_FALLBACKS", 5))
DEFAULT_BATCH_SIZE = int(os.getenv("DEFAULT_BATCH_SIZE", 512))
DEFAULT_FLUSH_INTERVAL_SECONDS = int(os.getenv("DEFAULT_FLUSH_INTERVAL_SECONDS", 5))
DEFAULT_S3_FLUSH_INTERVAL_SECONDS = int(
os.getenv("DEFAULT_S3_FLUSH_INTERVAL_SECONDS", 10)
)
DEFAULT_S3_BATCH_SIZE = int(os.getenv("DEFAULT_S3_BATCH_SIZE", 512))
DEFAULT_SQS_FLUSH_INTERVAL_SECONDS = int(
os.getenv("DEFAULT_SQS_FLUSH_INTERVAL_SECONDS", 10)
)
DEFAULT_NUM_WORKERS_LITELLM_PROXY = int(
os.getenv("DEFAULT_NUM_WORKERS_LITELLM_PROXY", 1)
)
DYNAMIC_RATE_LIMIT_ERROR_THRESHOLD_PER_MINUTE = int(
os.getenv("DYNAMIC_RATE_LIMIT_ERROR_THRESHOLD_PER_MINUTE", 1)
)
DEFAULT_SQS_BATCH_SIZE = int(os.getenv("DEFAULT_SQS_BATCH_SIZE", 512))
SQS_SEND_MESSAGE_ACTION = "SendMessage"
SQS_API_VERSION = "2012-11-05"
DEFAULT_MAX_RETRIES = int(os.getenv("DEFAULT_MAX_RETRIES", 2))
DEFAULT_MAX_RECURSE_DEPTH = int(os.getenv("DEFAULT_MAX_RECURSE_DEPTH", 100))
DEFAULT_MAX_RECURSE_DEPTH_SENSITIVE_DATA_MASKER = int(
os.getenv("DEFAULT_MAX_RECURSE_DEPTH_SENSITIVE_DATA_MASKER", 10)
)
DEFAULT_FAILURE_THRESHOLD_PERCENT = float(
os.getenv("DEFAULT_FAILURE_THRESHOLD_PERCENT", 0.5)
) # default cooldown a deployment if 50% of requests fail in a given minute
DEFAULT_MAX_TOKENS = int(os.getenv("DEFAULT_MAX_TOKENS", 4096))
DEFAULT_ALLOWED_FAILS = int(os.getenv("DEFAULT_ALLOWED_FAILS", 3))
DEFAULT_REDIS_SYNC_INTERVAL = int(os.getenv("DEFAULT_REDIS_SYNC_INTERVAL", 1))
DEFAULT_COOLDOWN_TIME_SECONDS = int(os.getenv("DEFAULT_COOLDOWN_TIME_SECONDS", 5))
DEFAULT_REPLICATE_POLLING_RETRIES = int(
os.getenv("DEFAULT_REPLICATE_POLLING_RETRIES", 5)
)
DEFAULT_REPLICATE_POLLING_DELAY_SECONDS = int(
os.getenv("DEFAULT_REPLICATE_POLLING_DELAY_SECONDS", 1)
)
DEFAULT_IMAGE_TOKEN_COUNT = int(os.getenv("DEFAULT_IMAGE_TOKEN_COUNT", 250))
DEFAULT_IMAGE_WIDTH = int(os.getenv("DEFAULT_IMAGE_WIDTH", 300))
DEFAULT_IMAGE_HEIGHT = int(os.getenv("DEFAULT_IMAGE_HEIGHT", 300))
MAX_SIZE_PER_ITEM_IN_MEMORY_CACHE_IN_KB = int(
os.getenv("MAX_SIZE_PER_ITEM_IN_MEMORY_CACHE_IN_KB", 1024)
) # 1MB = 1024KB
SINGLE_DEPLOYMENT_TRAFFIC_FAILURE_THRESHOLD = int(
os.getenv("SINGLE_DEPLOYMENT_TRAFFIC_FAILURE_THRESHOLD", 1000)
) # Minimum number of requests to consider "reasonable traffic". Used for single-deployment cooldown logic.
DEFAULT_REASONING_EFFORT_DISABLE_THINKING_BUDGET = int(
os.getenv("DEFAULT_REASONING_EFFORT_DISABLE_THINKING_BUDGET", 0)
)
# Gemini model-specific minimal thinking budget constants
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH = int(
os.getenv("DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH", 1)
)
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_PRO = int(
os.getenv("DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_PRO", 128)
)
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH_LITE = int(
os.getenv(
"DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH_LITE", 512
)
)
# Generic fallback for unknown models
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET = int(
os.getenv("DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET", 128)
)
DEFAULT_REASONING_EFFORT_LOW_THINKING_BUDGET = int(
os.getenv("DEFAULT_REASONING_EFFORT_LOW_THINKING_BUDGET", 1024)
)
DEFAULT_REASONING_EFFORT_MEDIUM_THINKING_BUDGET = int(
os.getenv("DEFAULT_REASONING_EFFORT_MEDIUM_THINKING_BUDGET", 2048)
)
DEFAULT_REASONING_EFFORT_HIGH_THINKING_BUDGET = int(
os.getenv("DEFAULT_REASONING_EFFORT_HIGH_THINKING_BUDGET", 4096)
)
MAX_TOKEN_TRIMMING_ATTEMPTS = int(
os.getenv("MAX_TOKEN_TRIMMING_ATTEMPTS", 10)
) # Maximum number of attempts to trim the message
RUNWAYML_DEFAULT_API_VERSION = str(
os.getenv("RUNWAYML_DEFAULT_API_VERSION", "2024-11-06")
)
RUNWAYML_POLLING_TIMEOUT = int(
os.getenv("RUNWAYML_POLLING_TIMEOUT", 600)
) # 10 minutes default for image generation
########## Networking constants ##############################################################
_DEFAULT_TTL_FOR_HTTPX_CLIENTS = 3600 # 1 hour, re-use the same httpx client for 1 hour
# Aiohttp connection pooling constants
AIOHTTP_CONNECTOR_LIMIT = int(os.getenv("AIOHTTP_CONNECTOR_LIMIT", 0))
AIOHTTP_KEEPALIVE_TIMEOUT = int(os.getenv("AIOHTTP_KEEPALIVE_TIMEOUT", 120))
AIOHTTP_TTL_DNS_CACHE = int(os.getenv("AIOHTTP_TTL_DNS_CACHE", 300))
# WebSocket constants
# Default to None (unlimited) to match OpenAI's official agents SDK behavior
# https://github.com/openai/openai-agents-python/blob/cf1b933660e44fd37b4350c41febab8221801409/src/agents/realtime/openai_realtime.py#L235
_max_size_env = os.getenv("REALTIME_WEBSOCKET_MAX_MESSAGE_SIZE_BYTES")
REALTIME_WEBSOCKET_MAX_MESSAGE_SIZE_BYTES = (
int(_max_size_env) if _max_size_env is not None else None
)
# SSL/TLS cipher configuration for faster handshakes
# Strategy: Strongly prefer fast modern ciphers, but allow fallback to commonly supported ones
# This balances performance with broad compatibility
DEFAULT_SSL_CIPHERS = os.getenv(
"LITELLM_SSL_CIPHERS",
# Priority 1: TLS 1.3 ciphers (fastest, ~50ms handshake)
"TLS_AES_256_GCM_SHA384:" # Fastest observed in testing
"TLS_AES_128_GCM_SHA256:" # Slightly faster than 256-bit
"TLS_CHACHA20_POLY1305_SHA256:" # Fast on ARM/mobile
# Priority 2: TLS 1.2 ECDHE+GCM (fast, ~100ms handshake, widely supported)
"ECDHE-RSA-AES256-GCM-SHA384:"
"ECDHE-RSA-AES128-GCM-SHA256:"
"ECDHE-ECDSA-AES256-GCM-SHA384:"
"ECDHE-ECDSA-AES128-GCM-SHA256:"
# Priority 3: Additional modern ciphers (good balance)
"ECDHE-RSA-CHACHA20-POLY1305:" "ECDHE-ECDSA-CHACHA20-POLY1305:"
# Priority 4: Widely compatible fallbacks (slower but universally supported)
"ECDHE-RSA-AES256-SHA384:" # Common fallback
"ECDHE-RSA-AES128-SHA256:" # Very widely supported
"AES256-GCM-SHA384:" # Non-PFS fallback (compatibility)
"AES128-GCM-SHA256", # Last resort (maximum compatibility)
)
########### v2 Architecture constants for managing writing updates to the database ###########
REDIS_UPDATE_BUFFER_KEY = "litellm_spend_update_buffer"
REDIS_DAILY_SPEND_UPDATE_BUFFER_KEY = "litellm_daily_spend_update_buffer"
REDIS_DAILY_TEAM_SPEND_UPDATE_BUFFER_KEY = "litellm_daily_team_spend_update_buffer"
REDIS_DAILY_TAG_SPEND_UPDATE_BUFFER_KEY = "litellm_daily_tag_spend_update_buffer"
MAX_REDIS_BUFFER_DEQUEUE_COUNT = int(os.getenv("MAX_REDIS_BUFFER_DEQUEUE_COUNT", 100))
MAX_SIZE_IN_MEMORY_QUEUE = int(os.getenv("MAX_SIZE_IN_MEMORY_QUEUE", 10000))
MAX_IN_MEMORY_QUEUE_FLUSH_COUNT = int(
os.getenv("MAX_IN_MEMORY_QUEUE_FLUSH_COUNT", 1000)
)
###############################################################################################
MINIMUM_PROMPT_CACHE_TOKEN_COUNT = int(
os.getenv("MINIMUM_PROMPT_CACHE_TOKEN_COUNT", 1024)
) # minimum number of tokens to cache a prompt by Anthropic
DEFAULT_TRIM_RATIO = float(
os.getenv("DEFAULT_TRIM_RATIO", 0.75)
) # default ratio of tokens to trim from the end of a prompt
HOURS_IN_A_DAY = int(os.getenv("HOURS_IN_A_DAY", 24))
DAYS_IN_A_WEEK = int(os.getenv("DAYS_IN_A_WEEK", 7))
DAYS_IN_A_MONTH = int(os.getenv("DAYS_IN_A_MONTH", 28))
DAYS_IN_A_YEAR = int(os.getenv("DAYS_IN_A_YEAR", 365))
REPLICATE_MODEL_NAME_WITH_ID_LENGTH = int(
os.getenv("REPLICATE_MODEL_NAME_WITH_ID_LENGTH", 64)
)
#### TOKEN COUNTING ####
FUNCTION_DEFINITION_TOKEN_COUNT = int(os.getenv("FUNCTION_DEFINITION_TOKEN_COUNT", 9))
SYSTEM_MESSAGE_TOKEN_COUNT = int(os.getenv("SYSTEM_MESSAGE_TOKEN_COUNT", 4))
TOOL_CHOICE_OBJECT_TOKEN_COUNT = int(os.getenv("TOOL_CHOICE_OBJECT_TOKEN_COUNT", 4))
DEFAULT_MOCK_RESPONSE_PROMPT_TOKEN_COUNT = int(
os.getenv("DEFAULT_MOCK_RESPONSE_PROMPT_TOKEN_COUNT", 10)
)
DEFAULT_MOCK_RESPONSE_COMPLETION_TOKEN_COUNT = int(
os.getenv("DEFAULT_MOCK_RESPONSE_COMPLETION_TOKEN_COUNT", 20)
)
MAX_SHORT_SIDE_FOR_IMAGE_HIGH_RES = int(
os.getenv("MAX_SHORT_SIDE_FOR_IMAGE_HIGH_RES", 768)
)
MAX_LONG_SIDE_FOR_IMAGE_HIGH_RES = int(
os.getenv("MAX_LONG_SIDE_FOR_IMAGE_HIGH_RES", 2000)
)
MAX_TILE_WIDTH = int(os.getenv("MAX_TILE_WIDTH", 512))
MAX_TILE_HEIGHT = int(os.getenv("MAX_TILE_HEIGHT", 512))
OPENAI_FILE_SEARCH_COST_PER_1K_CALLS = float(
os.getenv("OPENAI_FILE_SEARCH_COST_PER_1K_CALLS", 2.5 / 1000)
)
# Azure OpenAI Assistants feature costs
# Source: https://azure.microsoft.com/en-us/pricing/details/cognitive-services/openai-service/
AZURE_FILE_SEARCH_COST_PER_GB_PER_DAY = float(
os.getenv("AZURE_FILE_SEARCH_COST_PER_GB_PER_DAY", 0.1) # $0.1 USD per 1 GB/Day
)
AZURE_COMPUTER_USE_INPUT_COST_PER_1K_TOKENS = float(
os.getenv(
"AZURE_COMPUTER_USE_INPUT_COST_PER_1K_TOKENS", 3.0
) # $0.003 USD per 1K Tokens
)
AZURE_COMPUTER_USE_OUTPUT_COST_PER_1K_TOKENS = float(
os.getenv(
"AZURE_COMPUTER_USE_OUTPUT_COST_PER_1K_TOKENS", 12.0
) # $0.012 USD per 1K Tokens
)
AZURE_VECTOR_STORE_COST_PER_GB_PER_DAY = float(
os.getenv(
"AZURE_VECTOR_STORE_COST_PER_GB_PER_DAY", 0.1
) # $0.1 USD per 1 GB/Day (same as file search)
)
MIN_NON_ZERO_TEMPERATURE = float(os.getenv("MIN_NON_ZERO_TEMPERATURE", 0.0001))
#### RELIABILITY ####
REPEATED_STREAMING_CHUNK_LIMIT = int(
os.getenv("REPEATED_STREAMING_CHUNK_LIMIT", 100)
) # catch if model starts looping the same chunk while streaming. Uses high default to prevent false positives.
DEFAULT_MAX_LRU_CACHE_SIZE = int(os.getenv("DEFAULT_MAX_LRU_CACHE_SIZE", 16))
_REALTIME_BODY_CACHE_SIZE = 1000 # Keep realtime helper caches bounded; workloads rarely exceed 1k models/intents
INITIAL_RETRY_DELAY = float(os.getenv("INITIAL_RETRY_DELAY", 0.5))
MAX_RETRY_DELAY = float(os.getenv("MAX_RETRY_DELAY", 8.0))
JITTER = float(os.getenv("JITTER", 0.75))
DEFAULT_IN_MEMORY_TTL = int(
os.getenv("DEFAULT_IN_MEMORY_TTL", 5)
) # default time to live for the in-memory cache
DEFAULT_MAX_REDIS_BATCH_CACHE_SIZE = int(
os.getenv("DEFAULT_MAX_REDIS_BATCH_CACHE_SIZE", 1000)
) # default max size for redis batch cache
DEFAULT_POLLING_INTERVAL = float(
os.getenv("DEFAULT_POLLING_INTERVAL", 0.03)
) # default polling interval for the scheduler
AZURE_OPERATION_POLLING_TIMEOUT = int(os.getenv("AZURE_OPERATION_POLLING_TIMEOUT", 120))
AZURE_DOCUMENT_INTELLIGENCE_API_VERSION = str(
os.getenv("AZURE_DOCUMENT_INTELLIGENCE_API_VERSION", "2024-11-30")
)
AZURE_DOCUMENT_INTELLIGENCE_DEFAULT_DPI = int(
os.getenv("AZURE_DOCUMENT_INTELLIGENCE_DEFAULT_DPI", 96)
)
REDIS_SOCKET_TIMEOUT = float(os.getenv("REDIS_SOCKET_TIMEOUT", 0.1))
REDIS_CONNECTION_POOL_TIMEOUT = int(os.getenv("REDIS_CONNECTION_POOL_TIMEOUT", 5))
# Default Redis major version to assume when version cannot be determined
# Using 7 as it's the modern version that supports LPOP with count parameter
DEFAULT_REDIS_MAJOR_VERSION = int(os.getenv("DEFAULT_REDIS_MAJOR_VERSION", 7))
NON_LLM_CONNECTION_TIMEOUT = int(
os.getenv("NON_LLM_CONNECTION_TIMEOUT", 15)
) # timeout for adjacent services (e.g. jwt auth)
MAX_EXCEPTION_MESSAGE_LENGTH = int(os.getenv("MAX_EXCEPTION_MESSAGE_LENGTH", 2000))
MAX_STRING_LENGTH_PROMPT_IN_DB = int(os.getenv("MAX_STRING_LENGTH_PROMPT_IN_DB", 2048))
BEDROCK_MAX_POLICY_SIZE = int(os.getenv("BEDROCK_MAX_POLICY_SIZE", 75))
REPLICATE_POLLING_DELAY_SECONDS = float(
os.getenv("REPLICATE_POLLING_DELAY_SECONDS", 0.5)
)
DEFAULT_ANTHROPIC_CHAT_MAX_TOKENS = int(
os.getenv("DEFAULT_ANTHROPIC_CHAT_MAX_TOKENS", 4096)
)
TOGETHER_AI_4_B = int(os.getenv("TOGETHER_AI_4_B", 4))
TOGETHER_AI_8_B = int(os.getenv("TOGETHER_AI_8_B", 8))
TOGETHER_AI_21_B = int(os.getenv("TOGETHER_AI_21_B", 21))
TOGETHER_AI_41_B = int(os.getenv("TOGETHER_AI_41_B", 41))
TOGETHER_AI_80_B = int(os.getenv("TOGETHER_AI_80_B", 80))
TOGETHER_AI_110_B = int(os.getenv("TOGETHER_AI_110_B", 110))
TOGETHER_AI_EMBEDDING_150_M = int(os.getenv("TOGETHER_AI_EMBEDDING_150_M", 150))
TOGETHER_AI_EMBEDDING_350_M = int(os.getenv("TOGETHER_AI_EMBEDDING_350_M", 350))
QDRANT_SCALAR_QUANTILE = float(os.getenv("QDRANT_SCALAR_QUANTILE", 0.99))
QDRANT_VECTOR_SIZE = int(os.getenv("QDRANT_VECTOR_SIZE", 1536))
CACHED_STREAMING_CHUNK_DELAY = float(os.getenv("CACHED_STREAMING_CHUNK_DELAY", 0.02))
MAX_SIZE_PER_ITEM_IN_MEMORY_CACHE_IN_KB = int(
os.getenv("MAX_SIZE_PER_ITEM_IN_MEMORY_CACHE_IN_KB", 512)
)
DEFAULT_MAX_TOKENS_FOR_TRITON = int(os.getenv("DEFAULT_MAX_TOKENS_FOR_TRITON", 2000))
#### Networking settings ####
request_timeout: float = float(os.getenv("REQUEST_TIMEOUT", 6000)) # time in seconds
STREAM_SSE_DONE_STRING: str = "[DONE]"
STREAM_SSE_DATA_PREFIX: str = "data: "
### SPEND TRACKING ###
DEFAULT_REPLICATE_GPU_PRICE_PER_SECOND = float(
os.getenv("DEFAULT_REPLICATE_GPU_PRICE_PER_SECOND", 0.001400)
) # price per second for a100 80GB
FIREWORKS_AI_56_B_MOE = int(os.getenv("FIREWORKS_AI_56_B_MOE", 56))
FIREWORKS_AI_176_B_MOE = int(os.getenv("FIREWORKS_AI_176_B_MOE", 176))
FIREWORKS_AI_4_B = int(os.getenv("FIREWORKS_AI_4_B", 4))
FIREWORKS_AI_16_B = int(os.getenv("FIREWORKS_AI_16_B", 16))
FIREWORKS_AI_80_B = int(os.getenv("FIREWORKS_AI_80_B", 80))
#### Logging callback constants ####
REDACTED_BY_LITELM_STRING = "REDACTED_BY_LITELM"
MAX_LANGFUSE_INITIALIZED_CLIENTS = int(
os.getenv("MAX_LANGFUSE_INITIALIZED_CLIENTS", 50)
)
DD_TRACER_STREAMING_CHUNK_YIELD_RESOURCE = os.getenv(
"DD_TRACER_STREAMING_CHUNK_YIELD_RESOURCE", "streaming.chunk.yield"
)
############### LLM Provider Constants ###############
### ANTHROPIC CONSTANTS ###
ANTHROPIC_WEB_SEARCH_TOOL_MAX_USES = {
"low": 1,
"medium": 5,
"high": 10,
}
DEFAULT_IMAGE_ENDPOINT_MODEL = "dall-e-2"
DEFAULT_VIDEO_ENDPOINT_MODEL = "sora-2"
DEFAULT_GOOGLE_VIDEO_DURATION_SECONDS = int(
os.getenv("DEFAULT_GOOGLE_VIDEO_DURATION_SECONDS", 8)
)
### DATAFORSEO CONSTANTS ###
DEFAULT_DATAFORSEO_LOCATION_CODE = int(
os.getenv("DEFAULT_DATAFORSEO_LOCATION_CODE", 2250)
) # Default to France (2250) - lower number, commonly used location
LITELLM_CHAT_PROVIDERS = [
"openai",
"openai_like",
"bytez",
"xai",
"custom_openai",
"text-completion-openai",
"cohere",
"cohere_chat",
"clarifai",
"anthropic",
"anthropic_text",
"replicate",
"huggingface",
"together_ai",
"datarobot",
"openrouter",
"cometapi",
"vertex_ai",
"vertex_ai_beta",
"gemini",
"ai21",
"baseten",
"azure",
"azure_text",
"azure_ai",
"sagemaker",
"sagemaker_chat",
"bedrock",
"vllm",
"nlp_cloud",
"petals",
"oobabooga",
"ollama",
"ollama_chat",
"deepinfra",
"perplexity",
"mistral",
"groq",
"nvidia_nim",
"cerebras",
"baseten",
"ai21_chat",
"volcengine",
"codestral",
"text-completion-codestral",
"deepseek",
"sambanova",
"maritalk",
"cloudflare",
"fireworks_ai",
"friendliai",
"watsonx",
"watsonx_text",
"triton",
"predibase",
"databricks",
"empower",
"github",
"custom",
"litellm_proxy",
"hosted_vllm",
"llamafile",
"lm_studio",
"galadriel",
"gradient_ai",
"github_copilot", # GitHub Copilot Chat API
"novita",
"meta_llama",
"featherless_ai",
"nscale",
"nebius",
"dashscope",
"moonshot",
"v0",
"heroku",
"oci",
"morph",
"lambda_ai",
"vercel_ai_gateway",
"wandb",
"ovhcloud",
"lemonade",
"docker_model_runner",
]
LITELLM_EMBEDDING_PROVIDERS_SUPPORTING_INPUT_ARRAY_OF_TOKENS = [
"openai",
"azure",
"hosted_vllm",
"nebius",
]
OPENAI_CHAT_COMPLETION_PARAMS = [
"functions",
"function_call",
"temperature",
"temperature",
"top_p",
"n",
"stream",
"stream_options",
"stop",
"max_completion_tokens",
"modalities",
"prediction",
"audio",
"max_tokens",
"presence_penalty",
"frequency_penalty",
"logit_bias",
"user",
"request_timeout",
"api_base",
"api_version",
"api_key",
"deployment_id",
"organization",
"base_url",
"default_headers",
"timeout",
"response_format",
"seed",
"tools",
"tool_choice",
"max_retries",
"parallel_tool_calls",
"logprobs",
"top_logprobs",
"reasoning_effort",
"extra_headers",
"thinking",
"web_search_options",
"service_tier",
]
OPENAI_TRANSCRIPTION_PARAMS = [
"language",
"response_format",
"timestamp_granularities",
]
OPENAI_EMBEDDING_PARAMS = ["dimensions", "encoding_format", "user"]
DEFAULT_EMBEDDING_PARAM_VALUES = {
**{k: None for k in OPENAI_EMBEDDING_PARAMS},
"model": None,
"custom_llm_provider": "",
"input": None,
}
DEFAULT_CHAT_COMPLETION_PARAM_VALUES = {
"functions": None,
"function_call": None,
"temperature": None,
"top_p": None,
"n": None,
"stream": None,
"stream_options": None,
"stop": None,
"max_tokens": None,
"max_completion_tokens": None,
"modalities": None,
"prediction": None,
"audio": None,
"presence_penalty": None,
"frequency_penalty": None,
"logit_bias": None,
"user": None,
"model": None,
"custom_llm_provider": "",
"response_format": None,
"seed": None,
"tools": None,
"tool_choice": None,
"max_retries": None,
"logprobs": None,
"top_logprobs": None,
"extra_headers": None,
"api_version": None,
"parallel_tool_calls": None,
"drop_params": None,
"allowed_openai_params": None,
"additional_drop_params": None,
"messages": None,
"reasoning_effort": None,
"verbosity": None,
"thinking": None,
"web_search_options": None,
"service_tier": None,
"safety_identifier": None,
}
openai_compatible_endpoints: List = [
"api.perplexity.ai",
"api.endpoints.anyscale.com/v1",
"api.deepinfra.com/v1/openai",
"api.mistral.ai/v1",
"codestral.mistral.ai/v1/chat/completions",
"codestral.mistral.ai/v1/fim/completions",
"api.groq.com/openai/v1",
"https://integrate.api.nvidia.com/v1",
"api.deepseek.com/v1",
"api.together.xyz/v1",
"app.empower.dev/api/v1",
"https://api.friendli.ai/serverless/v1",
"api.sambanova.ai/v1",
"api.x.ai/v1",
"api.galadriel.ai/v1",
"api.llama.com/compat/v1/",
"api.featherless.ai/v1",
"inference.api.nscale.com/v1",
"api.studio.nebius.ai/v1",
"https://dashscope-intl.aliyuncs.com/compatible-mode/v1",
"https://api.moonshot.ai/v1",
"https://api.v0.dev/v1",
"https://api.morphllm.com/v1",
"https://api.lambda.ai/v1",
"https://api.hyperbolic.xyz/v1",
"https://ai-gateway.vercel.sh/v1",
"https://api.inference.wandb.ai/v1",
"https://api.clarifai.com/v2/ext/openai/v1",
]
openai_compatible_providers: List = [
"anyscale",
"groq",
"nvidia_nim",
"cerebras",
"baseten",
"sambanova",
"ai21_chat",
"ai21",
"volcengine",
"codestral",
"deepseek",
"deepinfra",
"perplexity",
"xinference",
"xai",
"together_ai",
"fireworks_ai",
"empower",
"friendliai",
"azure_ai",
"github",
"litellm_proxy",
"hosted_vllm",
"llamafile",
"lm_studio",
"galadriel",
"github_copilot", # GitHub Copilot Chat API
"novita",
"meta_llama",
"featherless_ai",
"nscale",
"nebius",
"dashscope",
"moonshot",
"v0",
"morph",
"lambda_ai",
"hyperbolic",
"vercel_ai_gateway",
"aiml",
"wandb",
"cometapi",
"clarifai",
"docker_model_runner",
]
openai_text_completion_compatible_providers: List = (
[ # providers that support `/v1/completions`
"together_ai",
"fireworks_ai",
"hosted_vllm",
"meta_llama",
"llamafile",
"featherless_ai",
"nebius",
"dashscope",
"moonshot",
"v0",
"lambda_ai",
"hyperbolic",
"wandb",
]
)
_openai_like_providers: List = [
"predibase",
"databricks",
"watsonx",
] # private helper. similar to openai but require some custom auth / endpoint handling, so can't use the openai sdk
# well supported replicate llms
replicate_models: set = set(
[
# llama replicate supported LLMs
"replicate/llama-2-70b-chat:2796ee9483c3fd7aa2e171d38f4ca12251a30609463dcfd4cd76703f22e96cdf",
"a16z-infra/llama-2-13b-chat:2a7f981751ec7fdf87b5b91ad4db53683a98082e9ff7bfd12c8cd5ea85980a52",
"meta/codellama-13b:1c914d844307b0588599b8393480a3ba917b660c7e9dfae681542b5325f228db",
# Vicuna
"replicate/vicuna-13b:6282abe6a492de4145d7bb601023762212f9ddbbe78278bd6771c8b3b2f2a13b",
"joehoover/instructblip-vicuna13b:c4c54e3c8c97cd50c2d2fec9be3b6065563ccf7d43787fb99f84151b867178fe",
# Flan T-5
"daanelson/flan-t5-large:ce962b3f6792a57074a601d3979db5839697add2e4e02696b3ced4c022d4767f",
# Others
"replicate/dolly-v2-12b:ef0e1aefc61f8e096ebe4db6b2bacc297daf2ef6899f0f7e001ec445893500e5",
"replit/replit-code-v1-3b:b84f4c074b807211cd75e3e8b1589b6399052125b4c27106e43d47189e8415ad",
]
)
clarifai_models: set = set(
[
"clarifai/openai.chat-completion.gpt-oss-20b",
"clarifai/qwen.qwenLM.Qwen3-30B-A3B-Instruct-2507",
"clarifai/qwen.qwen3.qwen3-next-80B-A3B-Thinking",
"clarifai/openai.chat-completion.gpt-oss-120b",
"clarifai/qwen.qwenLM.Qwen3-30B-A3B-Thinking-2507"
"clarifai/openai.chat-completion.gpt-5-nano",
"clarifai/openai.chat-completion.gpt-4o",
"clarifai/gcp.generate.gemini-2_5-pro",
"clarifai/anthropic.completion.claude-sonnet-4",
"clarifai/xai.chat-completion.grok-2-vision-1212",
"clarifai/openbmb.miniCPM.MiniCPM-o-2_6-language",
"clarifai/microsoft.text-generation.Phi-4-reasoning-plus",
"clarifai/openbmb.miniCPM.MiniCPM3-4B",
"clarifai/openbmb.miniCPM.MiniCPM4-8B",
"clarifai/xai.chat-completion.grok-2-1212",
"clarifai/anthropic.completion.claude-opus-4",
"clarifai/xai.chat-completion.grok-code-fast-1",
"clarifai/qwen.qwenCoder.Qwen3-Coder-30B-A3B-Instruct",
"clarifai/deepseek-ai.deepseek-chat.DeepSeek-R1-0528-Qwen3-8B",
"clarifai/openai.chat-completion.gpt-5-mini",
"clarifai/microsoft.text-generation.phi-4",
"clarifai/openai.chat-completion.gpt-5",
"clarifai/meta.Llama-3.Llama-3_2-3B-Instruct",
"clarifai/xai.image-generation.grok-2-image-1212",
"clarifai/xai.chat-completion.grok-3",
"clarifai/openai.chat-completion.o3",
"clarifai/qwen.qwen-VL.Qwen2_5-VL-7B-Instruct",
"clarifai/qwen.qwenLM.Qwen3-14B",
"clarifai/qwen.qwenLM.QwQ-32B-AWQ",
"clarifai/anthropic.completion.claude-3_5-haiku",
"clarifai/anthropic.completion.claude-3_7-sonnet",
]
)
huggingface_models: set = set(
[
"meta-llama/Llama-2-7b-hf",
"meta-llama/Llama-2-7b-chat-hf",
"meta-llama/Llama-2-13b-hf",
"meta-llama/Llama-2-13b-chat-hf",
"meta-llama/Llama-2-70b-hf",
"meta-llama/Llama-2-70b-chat-hf",
"meta-llama/Llama-2-7b",
"meta-llama/Llama-2-7b-chat",
"meta-llama/Llama-2-13b",
"meta-llama/Llama-2-13b-chat",
"meta-llama/Llama-2-70b",
"meta-llama/Llama-2-70b-chat",
]
) # these have been tested on extensively. But by default all text2text-generation and text-generation models are supported by liteLLM. - https://docs.litellm.ai/docs/providers
empower_models = set(
[
"empower/empower-functions",
"empower/empower-functions-small",
]
)
together_ai_models: set = set(
[
# llama llms - chat
"togethercomputer/llama-2-70b-chat",
# llama llms - language / instruct
"togethercomputer/llama-2-70b",
"togethercomputer/LLaMA-2-7B-32K",
"togethercomputer/Llama-2-7B-32K-Instruct",
"togethercomputer/llama-2-7b",
# falcon llms
"togethercomputer/falcon-40b-instruct",
"togethercomputer/falcon-7b-instruct",
# alpaca
"togethercomputer/alpaca-7b",
# chat llms
"HuggingFaceH4/starchat-alpha",
# code llms
"togethercomputer/CodeLlama-34b",
"togethercomputer/CodeLlama-34b-Instruct",
"togethercomputer/CodeLlama-34b-Python",
"defog/sqlcoder",
"NumbersStation/nsql-llama-2-7B",
"WizardLM/WizardCoder-15B-V1.0",
"WizardLM/WizardCoder-Python-34B-V1.0",
# language llms
"NousResearch/Nous-Hermes-Llama2-13b",
"Austism/chronos-hermes-13b",
"upstage/SOLAR-0-70b-16bit",
"WizardLM/WizardLM-70B-V1.0",
]
)
# supports all together ai models, just pass in the model id e.g. completion(model="together_computer/replit_code_3b",...)
baseten_models: set = set(
[
"qvv0xeq",
"q841o8w",
"31dxrj3",
]
) # FALCON 7B # WizardLM # Mosaic ML
featherless_ai_models: set = set(
[
"featherless-ai/Qwerky-72B",
"featherless-ai/Qwerky-QwQ-32B",
"Qwen/Qwen2.5-72B-Instruct",
"all-hands/openhands-lm-32b-v0.1",
"Qwen/Qwen2.5-Coder-32B-Instruct",
"deepseek-ai/DeepSeek-V3-0324",
"mistralai/Mistral-Small-24B-Instruct-2501",
"mistralai/Mistral-Nemo-Instruct-2407",
"ProdeusUnity/Stellar-Odyssey-12b-v0.0",
]
)
nebius_models: set = set(
[
# deepseek models
"deepseek-ai/DeepSeek-R1-0528",
"deepseek-ai/DeepSeek-V3-0324",
"deepseek-ai/DeepSeek-V3",
"deepseek-ai/DeepSeek-R1",
"deepseek-ai/DeepSeek-R1-Distill-Llama-70B",
# google models
"google/gemma-2-2b-it",
"google/gemma-2-9b-it-fast",
# llama models
"meta-llama/Llama-3.3-70B-Instruct",
"meta-llama/Meta-Llama-3.1-70B-Instruct",
"meta-llama/Meta-Llama-3.1-8B-Instruct",
"meta-llama/Meta-Llama-3.1-405B-Instruct",
"NousResearch/Hermes-3-Llama-405B",
# microsoft models
"microsoft/phi-4",
# mistral models
"mistralai/Mistral-Nemo-Instruct-2407",
"mistralai/Devstral-Small-2505",
# moonshot models
"moonshotai/Kimi-K2-Instruct",
# nvidia models
"nvidia/Llama-3_1-Nemotron-Ultra-253B-v1",
"nvidia/Llama-3_3-Nemotron-Super-49B-v1",
# openai models
"openai/gpt-oss-120b",
"openai/gpt-oss-20b",
# qwen models
"Qwen/Qwen3-Coder-480B-A35B-Instruct",
"Qwen/Qwen3-235B-A22B-Instruct-2507",
"Qwen/Qwen3-235B-A22B",
"Qwen/Qwen3-30B-A3B",
"Qwen/Qwen3-32B",
"Qwen/Qwen3-14B",
"Qwen/Qwen3-4B-fast",
"Qwen/Qwen2.5-Coder-7B",
"Qwen/Qwen2.5-Coder-32B-Instruct",
"Qwen/Qwen2.5-72B-Instruct",
"Qwen/QwQ-32B",
"Qwen/Qwen3-30B-A3B-Thinking-2507",
"Qwen/Qwen3-30B-A3B-Instruct-2507",
# zai models
"zai-org/GLM-4.5",
"zai-org/GLM-4.5-Air",
# other models
"aaditya/Llama3-OpenBioLLM-70B",
"ProdeusUnity/Stellar-Odyssey-12b-v0.0",
"all-hands/openhands-lm-32b-v0.1",
]
)
dashscope_models: set = set(
[
"qwen-turbo",
"qwen-plus",
"qwen-max",
"qwen-turbo-latest",
"qwen-plus-latest",
"qwen-max-latest",
"qwq-32b",
"qwen3-235b-a22b",
"qwen3-32b",
"qwen3-30b-a3b",
]
)
nebius_embedding_models: set = set(
[
"BAAI/bge-en-icl",
"BAAI/bge-multilingual-gemma2",
"intfloat/e5-mistral-7b-instruct",
]
)
WANDB_MODELS: set = set(
[
# openai models
"openai/gpt-oss-120b",
"openai/gpt-oss-20b",
# zai-org models
"zai-org/GLM-4.5",
# Qwen models
"Qwen/Qwen3-235B-A22B-Instruct-2507",
"Qwen/Qwen3-Coder-480B-A35B-Instruct",
"Qwen/Qwen3-235B-A22B-Thinking-2507",
# moonshotai
"moonshotai/Kimi-K2-Instruct",
# meta models
"meta-llama/Llama-3.1-8B-Instruct",
"meta-llama/Llama-3.3-70B-Instruct",
"meta-llama/Llama-4-Scout-17B-16E-Instruct",
# deepseek-ai
"deepseek-ai/DeepSeek-V3.1",
"deepseek-ai/DeepSeek-R1-0528",
"deepseek-ai/DeepSeek-V3-0324",
# microsoft
"microsoft/Phi-4-mini-instruct",
]
)
BEDROCK_INVOKE_PROVIDERS_LITERAL = Literal[
"cohere",
"anthropic",
"mistral",
"amazon",
"meta",
"llama",
"ai21",
"nova",
"deepseek_r1",
"qwen3",
]
BEDROCK_EMBEDDING_PROVIDERS_LITERAL = Literal[
"cohere",
"amazon",
"twelvelabs",
]
BEDROCK_CONVERSE_MODELS = [
"qwen.qwen3-coder-480b-a35b-v1:0",
"qwen.qwen3-235b-a22b-2507-v1:0",
"qwen.qwen3-coder-30b-a3b-v1:0",
"qwen.qwen3-32b-v1:0",
"deepseek.v3-v1:0",
"openai.gpt-oss-20b-1:0",
"openai.gpt-oss-120b-1:0",
"anthropic.claude-haiku-4-5-20251001-v1:0",
"anthropic.claude-sonnet-4-5-20250929-v1:0",
"anthropic.claude-opus-4-1-20250805-v1:0",
"anthropic.claude-opus-4-20250514-v1:0",
"anthropic.claude-sonnet-4-20250514-v1:0",
"anthropic.claude-3-7-sonnet-20250219-v1:0",
"anthropic.claude-3-5-haiku-20241022-v1:0",
"anthropic.claude-3-5-sonnet-20241022-v2:0",
"anthropic.claude-3-5-sonnet-20240620-v1:0",
"anthropic.claude-3-opus-20240229-v1:0",
"anthropic.claude-3-sonnet-20240229-v1:0",
"anthropic.claude-3-haiku-20240307-v1:0",
"anthropic.claude-v2",
"anthropic.claude-v2:1",
"anthropic.claude-v1",
"anthropic.claude-instant-v1",
"ai21.jamba-instruct-v1:0",
"ai21.jamba-1-5-mini-v1:0",
"ai21.jamba-1-5-large-v1:0",
"meta.llama3-70b-instruct-v1:0",
"meta.llama3-8b-instruct-v1:0",
"meta.llama3-1-8b-instruct-v1:0",
"meta.llama3-1-70b-instruct-v1:0",
"meta.llama3-1-405b-instruct-v1:0",
"meta.llama3-70b-instruct-v1:0",
"mistral.mistral-large-2407-v1:0",
"mistral.mistral-large-2402-v1:0",
"mistral.mistral-small-2402-v1:0",
"meta.llama3-2-1b-instruct-v1:0",
"meta.llama3-2-3b-instruct-v1:0",
"meta.llama3-2-11b-instruct-v1:0",
"meta.llama3-2-90b-instruct-v1:0",
]
open_ai_embedding_models: set = set(["text-embedding-ada-002"])
cohere_embedding_models: set = set(
[
"embed-v4.0",
"embed-english-v3.0",
"embed-english-light-v3.0",
"embed-multilingual-v3.0",
"embed-english-v2.0",
"embed-english-light-v2.0",
"embed-multilingual-v2.0",
]
)
bedrock_embedding_models: set = set(
[
"amazon.titan-embed-text-v1",
"cohere.embed-english-v3",
"cohere.embed-multilingual-v3",
"cohere.embed-v4:0",
"twelvelabs.marengo-embed-2-7-v1:0",
]
)
known_tokenizer_config = {
"mistralai/Mistral-7B-Instruct-v0.1": {
"tokenizer": {
"chat_template": "{{ bos_token }}{% for message in messages %}{% if (message['role'] == 'user') != (loop.index0 % 2 == 0) %}{{ raise_exception('Conversation roles must alternate user/assistant/user/assistant/...') }}{% endif %}{% if message['role'] == 'user' %}{{ '[INST] ' + message['content'] + ' [/INST]' }}{% elif message['role'] == 'assistant' %}{{ message['content'] + eos_token + ' ' }}{% else %}{{ raise_exception('Only user and assistant roles are supported!') }}{% endif %}{% endfor %}",
"bos_token": "<s>",
"eos_token": "</s>",
},
"status": "success",
},
"meta-llama/Meta-Llama-3-8B-Instruct": {
"tokenizer": {
"chat_template": "{% set loop_messages = messages %}{% for message in loop_messages %}{% set content = '<|start_header_id|>' + message['role'] + '<|end_header_id|>\n\n'+ message['content'] | trim + '<|eot_id|>' %}{% if loop.index0 == 0 %}{% set content = bos_token + content %}{% endif %}{{ content }}{% endfor %}{{ '<|start_header_id|>assistant<|end_header_id|>\n\n' }}",
"bos_token": "<|begin_of_text|>",
"eos_token": "",
},
"status": "success",
},
"deepseek-r1/deepseek-r1-7b-instruct": {
"tokenizer": {
"add_bos_token": True,
"add_eos_token": False,
"bos_token": {
"__type": "AddedToken",
"content": "<begin▁of▁sentence>",
"lstrip": False,
"normalized": True,
"rstrip": False,
"single_word": False,
},
"clean_up_tokenization_spaces": False,
"eos_token": {
"__type": "AddedToken",
"content": "<end▁of▁sentence>",
"lstrip": False,
"normalized": True,
"rstrip": False,
"single_word": False,
},
"legacy": True,
"model_max_length": 16384,
"pad_token": {
"__type": "AddedToken",
"content": "<end▁of▁sentence>",
"lstrip": False,
"normalized": True,
"rstrip": False,
"single_word": False,
},
"sp_model_kwargs": {},
"unk_token": None,
"tokenizer_class": "LlamaTokenizerFast",
"chat_template": "{% if not add_generation_prompt is defined %}{% set add_generation_prompt = false %}{% endif %}{% set ns = namespace(is_first=false, is_tool=false, is_output_first=true, system_prompt='') %}{%- for message in messages %}{%- if message['role'] == 'system' %}{% set ns.system_prompt = message['content'] %}{%- endif %}{%- endfor %}{{bos_token}}{{ns.system_prompt}}{%- for message in messages %}{%- if message['role'] == 'user' %}{%- set ns.is_tool = false -%}{{'<User>' + message['content']}}{%- endif %}{%- if message['role'] == 'assistant' and message['content'] is none %}{%- set ns.is_tool = false -%}{%- for tool in message['tool_calls']%}{%- if not ns.is_first %}{{'<Assistant><tool▁calls▁begin><tool▁call▁begin>' + tool['type'] + '<tool▁sep>' + tool['function']['name'] + '\\n' + '```json' + '\\n' + tool['function']['arguments'] + '\\n' + '```' + '<tool▁call▁end>'}}{%- set ns.is_first = true -%}{%- else %}{{'\\n' + '<tool▁call▁begin>' + tool['type'] + '<tool▁sep>' + tool['function']['name'] + '\\n' + '```json' + '\\n' + tool['function']['arguments'] + '\\n' + '```' + '<tool▁call▁end>'}}{{'<tool▁calls▁end><end▁of▁sentence>'}}{%- endif %}{%- endfor %}{%- endif %}{%- if message['role'] == 'assistant' and message['content'] is not none %}{%- if ns.is_tool %}{{'<tool▁outputs▁end>' + message['content'] + '<end▁of▁sentence>'}}{%- set ns.is_tool = false -%}{%- else %}{% set content = message['content'] %}{% if '</think>' in content %}{% set content = content.split('</think>')[-1] %}{% endif %}{{'<Assistant>' + content + '<end▁of▁sentence>'}}{%- endif %}{%- endif %}{%- if message['role'] == 'tool' %}{%- set ns.is_tool = true -%}{%- if ns.is_output_first %}{{'<tool▁outputs▁begin><tool▁output▁begin>' + message['content'] + '<tool▁output▁end>'}}{%- set ns.is_output_first = false %}{%- else %}{{'\\n<tool▁output▁begin>' + message['content'] + '<tool▁output▁end>'}}{%- endif %}{%- endif %}{%- endfor -%}{% if ns.is_tool %}{{'<tool▁outputs▁end>'}}{% endif %}{% if add_generation_prompt and not ns.is_tool %}{{'<Assistant><think>\\n'}}{% endif %}",
},
"status": "success",
},
}
OPENAI_FINISH_REASONS = ["stop", "length", "function_call", "content_filter", "null"]
HUMANLOOP_PROMPT_CACHE_TTL_SECONDS = int(
os.getenv("HUMANLOOP_PROMPT_CACHE_TTL_SECONDS", 60)
) # 1 minute
RESPONSE_FORMAT_TOOL_NAME = "json_tool_call" # default tool name used when converting response format to tool call
########################### Logging Callback Constants ###########################
AZURE_STORAGE_MSFT_VERSION = "2019-07-07"
PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES = int(
os.getenv("PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES", 5)
)
CLOUDZERO_EXPORT_INTERVAL_MINUTES = int(
os.getenv("CLOUDZERO_EXPORT_INTERVAL_MINUTES", 60)
)
MCP_TOOL_NAME_PREFIX = "mcp_tool"
MAXIMUM_TRACEBACK_LINES_TO_LOG = int(os.getenv("MAXIMUM_TRACEBACK_LINES_TO_LOG", 100))
# Headers to control callbacks
X_LITELLM_DISABLE_CALLBACKS = "x-litellm-disable-callbacks"
LITELLM_METADATA_FIELD = "litellm_metadata"
OLD_LITELLM_METADATA_FIELD = "metadata"
LITELLM_TRUNCATED_PAYLOAD_FIELD = "litellm_truncated"
########################### LiteLLM Proxy Specific Constants ###########################
########################################################################################
MAX_SPENDLOG_ROWS_TO_QUERY = int(
os.getenv("MAX_SPENDLOG_ROWS_TO_QUERY", 1_000_000)
) # if spendLogs has more than 1M rows, do not query the DB
DEFAULT_SOFT_BUDGET = float(
os.getenv("DEFAULT_SOFT_BUDGET", 50.0)
) # by default all litellm proxy keys have a soft budget of 50.0
# makes it clear this is a rate limit error for a litellm virtual key
RATE_LIMIT_ERROR_MESSAGE_FOR_VIRTUAL_KEY = "LiteLLM Virtual Key user_api_key_hash"
# Python garbage collection threshold configuration
# Format: "gen0,gen1,gen2" e.g., "1000,50,50"
PYTHON_GC_THRESHOLD = os.getenv("PYTHON_GC_THRESHOLD")
# pass through route constansts
BEDROCK_AGENT_RUNTIME_PASS_THROUGH_ROUTES = [
"agents/",
"knowledgebases/",
"flows/",
"retrieveAndGenerate/",
"rerank/",
"generateQuery/",
"optimize-prompt/",
]
BASE_MCP_ROUTE = "/mcp"
BATCH_STATUS_POLL_INTERVAL_SECONDS = int(
os.getenv("BATCH_STATUS_POLL_INTERVAL_SECONDS", 3600)
) # 1 hour
BATCH_STATUS_POLL_MAX_ATTEMPTS = int(
os.getenv("BATCH_STATUS_POLL_MAX_ATTEMPTS", 24)
) # for 24 hours
HEALTH_CHECK_TIMEOUT_SECONDS = int(
os.getenv("HEALTH_CHECK_TIMEOUT_SECONDS", 60)
) # 60 seconds
LITTELM_INTERNAL_HEALTH_SERVICE_ACCOUNT_NAME = "litellm-internal-health-check"
LITTELM_CLI_SERVICE_ACCOUNT_NAME = "litellm-cli"
LITELLM_INTERNAL_JOBS_SERVICE_ACCOUNT_NAME = "litellm_internal_jobs"
# Key Rotation Constants
LITELLM_KEY_ROTATION_ENABLED = os.getenv("LITELLM_KEY_ROTATION_ENABLED", "false")
LITELLM_KEY_ROTATION_CHECK_INTERVAL_SECONDS = int(
os.getenv("LITELLM_KEY_ROTATION_CHECK_INTERVAL_SECONDS", 86400)
) # 24 hours default
UI_SESSION_TOKEN_TEAM_ID = "litellm-dashboard"
LITELLM_PROXY_ADMIN_NAME = "default_user_id"
########################### CLI SSO AUTHENTICATION CONSTANTS ###########################
LITELLM_CLI_SOURCE_IDENTIFIER = "litellm-cli"
LITELLM_CLI_SESSION_TOKEN_PREFIX = "litellm-session-token"
CLI_SSO_SESSION_CACHE_KEY_PREFIX = "cli_sso_session"
CLI_JWT_TOKEN_NAME = "cli-jwt-token"
########################### DB CRON JOB NAMES ###########################
DB_SPEND_UPDATE_JOB_NAME = "db_spend_update_job"
PROMETHEUS_EMIT_BUDGET_METRICS_JOB_NAME = "prometheus_emit_budget_metrics"
CLOUDZERO_EXPORT_USAGE_DATA_JOB_NAME = "cloudzero_export_usage_data"
CLOUDZERO_MAX_FETCHED_DATA_RECORDS = int(
os.getenv("CLOUDZERO_MAX_FETCHED_DATA_RECORDS", 50000)
)
SPEND_LOG_CLEANUP_JOB_NAME = "spend_log_cleanup"
SPEND_LOG_RUN_LOOPS = int(os.getenv("SPEND_LOG_RUN_LOOPS", 500))
SPEND_LOG_CLEANUP_BATCH_SIZE = int(os.getenv("SPEND_LOG_CLEANUP_BATCH_SIZE", 1000))
DEFAULT_CRON_JOB_LOCK_TTL_SECONDS = int(
os.getenv("DEFAULT_CRON_JOB_LOCK_TTL_SECONDS", 60)
) # 1 minute
PROXY_BUDGET_RESCHEDULER_MIN_TIME = int(
os.getenv("PROXY_BUDGET_RESCHEDULER_MIN_TIME", 597)
)
PROXY_BATCH_POLLING_INTERVAL = int(os.getenv("PROXY_BATCH_POLLING_INTERVAL", 3600))
PROXY_BUDGET_RESCHEDULER_MAX_TIME = int(
os.getenv("PROXY_BUDGET_RESCHEDULER_MAX_TIME", 605)
)
PROXY_BATCH_WRITE_AT = int(
os.getenv("PROXY_BATCH_WRITE_AT", 10)
) # in seconds, increased from 10
# APScheduler Configuration - MEMORY LEAK FIX
# These settings prevent memory leaks in APScheduler's normalize() and _apply_jitter() functions
APSCHEDULER_COALESCE = os.getenv("APSCHEDULER_COALESCE", "True").lower() in [
"true",
"1",
] # collapse many missed runs into one
APSCHEDULER_MISFIRE_GRACE_TIME = int(
os.getenv("APSCHEDULER_MISFIRE_GRACE_TIME", 3600)
) # ignore runs older than 1 hour (was 120)
APSCHEDULER_MAX_INSTANCES = int(
os.getenv("APSCHEDULER_MAX_INSTANCES", 1)
) # prevent concurrent job instances
APSCHEDULER_REPLACE_EXISTING = os.getenv(
"APSCHEDULER_REPLACE_EXISTING", "True"
).lower() in [
"true",
"1",
] # always replace existing jobs
DEFAULT_HEALTH_CHECK_INTERVAL = int(
os.getenv("DEFAULT_HEALTH_CHECK_INTERVAL", 300)
) # 5 minutes
DEFAULT_SHARED_HEALTH_CHECK_TTL = int(
os.getenv("DEFAULT_SHARED_HEALTH_CHECK_TTL", 300)
) # 5 minutes - TTL for cached health check results
DEFAULT_SHARED_HEALTH_CHECK_LOCK_TTL = int(
os.getenv("DEFAULT_SHARED_HEALTH_CHECK_LOCK_TTL", 60)
) # 1 minute - TTL for health check lock
PROMETHEUS_FALLBACK_STATS_SEND_TIME_HOURS = int(
os.getenv("PROMETHEUS_FALLBACK_STATS_SEND_TIME_HOURS", 9)
)
DEFAULT_MODEL_CREATED_AT_TIME = int(
os.getenv("DEFAULT_MODEL_CREATED_AT_TIME", 1677610602)
) # returns on `/models` endpoint
DEFAULT_SLACK_ALERTING_THRESHOLD = int(
os.getenv("DEFAULT_SLACK_ALERTING_THRESHOLD", 300)
)
MAX_TEAM_LIST_LIMIT = int(os.getenv("MAX_TEAM_LIST_LIMIT", 20))
DEFAULT_PROMPT_INJECTION_SIMILARITY_THRESHOLD = float(
os.getenv("DEFAULT_PROMPT_INJECTION_SIMILARITY_THRESHOLD", 0.7)
)
LENGTH_OF_LITELLM_GENERATED_KEY = int(os.getenv("LENGTH_OF_LITELLM_GENERATED_KEY", 16))
SECRET_MANAGER_REFRESH_INTERVAL = int(
os.getenv("SECRET_MANAGER_REFRESH_INTERVAL", 86400)
)
LITELLM_SETTINGS_SAFE_DB_OVERRIDES = [
"default_internal_user_params",
"public_mcp_servers",
"public_agent_groups",
"public_model_groups",
"public_model_groups_links",
]
SPECIAL_LITELLM_AUTH_TOKEN = ["ui-token"]
DEFAULT_MANAGEMENT_OBJECT_IN_MEMORY_CACHE_TTL = int(
os.getenv("DEFAULT_MANAGEMENT_OBJECT_IN_MEMORY_CACHE_TTL", 60)
)
# Sentry Scrubbing Configuration
SENTRY_DENYLIST = [
# API Keys and Tokens
"api_key",
"token",
"key",
"secret",
"password",
"auth",
"credential",
"OPENAI_API_KEY",
"ANTHROPIC_API_KEY",
"AZURE_API_KEY",
"COHERE_API_KEY",
"REPLICATE_API_KEY",
"HUGGINGFACE_API_KEY",
"TOGETHERAI_API_KEY",
"CLOUDFLARE_API_KEY",
"BASETEN_KEY",
"OPENROUTER_KEY",
"COMETAPI_KEY",
"DATAROBOT_API_TOKEN",
"FIREWORKS_API_KEY",
"FIREWORKS_AI_API_KEY",
"FIREWORKSAI_API_KEY",
"OVHCLOUD_API_KEY",
"CLARIFAI_API_KEY",
# Database and Connection Strings
"database_url",
"redis_url",
"connection_string",
# Authentication and Security
"master_key",
"LITELLM_MASTER_KEY",
"auth_token",
"jwt_token",
"private_key",
"SLACK_WEBHOOK_URL",
"webhook_url",
"LANGFUSE_SECRET_KEY",
# Email Configuration
"SMTP_PASSWORD",
"SMTP_USERNAME",
"email_password",
# Cloud Provider Credentials
"aws_access_key",
"aws_secret_key",
"gcp_credentials",
"azure_credentials",
"HCP_VAULT_TOKEN",
"CIRCLE_OIDC_TOKEN",
# Proxy and Environment Settings
"proxy_url",
"proxy_key",
"environment_variables",
]
SENTRY_PII_DENYLIST = [
"user_id",
"email",
"phone",
"address",
"ip_address",
"SMTP_SENDER_EMAIL",
"TEST_EMAIL_ADDRESS",
]
# CoroutineChecker cache configuration
COROUTINE_CHECKER_MAX_SIZE_IN_MEMORY = int(
os.getenv("COROUTINE_CHECKER_MAX_SIZE_IN_MEMORY", 1000)
)