diff --git a/packages/core/src/models-dev.ts b/packages/core/src/models-dev.ts
index 5968f58aa..236fcc5eb 100644
--- a/packages/core/src/models-dev.ts
+++ b/packages/core/src/models-dev.ts
@@ -54,7 +54,7 @@ export const Model = Schema.Struct({
     Schema.Union([
       Schema.Literal(true),
       Schema.Struct({
-        field: Schema.Literals(["reasoning_content", "reasoning_details"]),
+        field: Schema.Literals(["reasoning", "reasoning_content", "reasoning_details"]),
       }),
     ]),
   ),
diff --git a/packages/core/src/v1/config/provider.ts b/packages/core/src/v1/config/provider.ts
index f6cae7d78..d54a3f08f 100644
--- a/packages/core/src/v1/config/provider.ts
+++ b/packages/core/src/v1/config/provider.ts
@@ -18,7 +18,7 @@ export const Model = Schema.Struct({
     Schema.Union([
       Schema.Literal(true),
       Schema.Struct({
-        field: Schema.Literals(["reasoning_content", "reasoning_details"]),
+        field: Schema.Literals(["reasoning", "reasoning_content", "reasoning_details"]),
       }),
     ]),
   ),
diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index edf9e9388..0ff492421 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -952,7 +952,7 @@ const ProviderModalities = Schema.Struct({
 const ProviderInterleaved = Schema.Union([
   Schema.Boolean,
   Schema.Struct({
-    field: Schema.Literals(["reasoning_content", "reasoning_details"]),
+    field: Schema.Literals(["reasoning", "reasoning_content", "reasoning_details"]),
   }),
 ])
 
diff --git a/packages/sdk/js/src/v2/gen/types.gen.ts b/packages/sdk/js/src/v2/gen/types.gen.ts
index 9c57ccd15..eb75bf767 100644
--- a/packages/sdk/js/src/v2/gen/types.gen.ts
+++ b/packages/sdk/js/src/v2/gen/types.gen.ts
@@ -1814,7 +1814,7 @@ export type ProviderConfig = {
       interleaved?:
         | true
         | {
-            field: "reasoning_content" | "reasoning_details"
+            field: "reasoning" | "reasoning_content" | "reasoning_details"
           }
       cost?: {
         input: number
@@ -2094,7 +2094,7 @@ export type Model = {
     interleaved:
       | boolean
       | {
-          field: "reasoning_content" | "reasoning_details"
+          field: "reasoning" | "reasoning_content" | "reasoning_details"
         }
   }
   cost: {
diff --git a/packages/sdk/openapi.json b/packages/sdk/openapi.json
index 2895c4743..99d2aa38a 100644
--- a/packages/sdk/openapi.json
+++ b/packages/sdk/openapi.json
@@ -17812,7 +17812,7 @@
                       "properties": {
                         "field": {
                           "type": "string",
-                          "enum": ["reasoning_content", "reasoning_details"]
+                          "enum": ["reasoning", "reasoning_content", "reasoning_details"]
                         }
                       },
                       "required": ["field"],
@@ -18590,7 +18590,7 @@
                     "properties": {
                       "field": {
                         "type": "string",
-                        "enum": ["reasoning_content", "reasoning_details"]
+                        "enum": ["reasoning", "reasoning_content", "reasoning_details"]
                       }
                     },
                     "required": ["field"],