diff --git a/client-sdks/stainless/openapi.yml b/client-sdks/stainless/openapi.yml
index 448b08908..d8159be62 100644
--- a/client-sdks/stainless/openapi.yml
+++ b/client-sdks/stainless/openapi.yml
@@ -6791,6 +6791,8 @@ components:
               const: web_search_preview
             - type: string
               const: web_search_preview_2025_03_11
+            - type: string
+              const: web_search_2025_08_26
           default: web_search
           description: Web search tool type variant to use
         search_context_size:
diff --git a/docs/static/llama-stack-spec.yaml b/docs/static/llama-stack-spec.yaml
index cc720ad18..ea7fd6eec 100644
--- a/docs/static/llama-stack-spec.yaml
+++ b/docs/static/llama-stack-spec.yaml
@@ -6075,6 +6075,8 @@ components:
               const: web_search_preview
             - type: string
               const: web_search_preview_2025_03_11
+            - type: string
+              const: web_search_2025_08_26
           default: web_search
           description: Web search tool type variant to use
         search_context_size:
diff --git a/docs/static/stainless-llama-stack-spec.yaml b/docs/static/stainless-llama-stack-spec.yaml
index 448b08908..d8159be62 100644
--- a/docs/static/stainless-llama-stack-spec.yaml
+++ b/docs/static/stainless-llama-stack-spec.yaml
@@ -6791,6 +6791,8 @@ components:
               const: web_search_preview
             - type: string
               const: web_search_preview_2025_03_11
+            - type: string
+              const: web_search_2025_08_26
           default: web_search
           description: Web search tool type variant to use
         search_context_size:
diff --git a/src/llama_stack/apis/agents/openai_responses.py b/src/llama_stack/apis/agents/openai_responses.py
index 553ac16c2..a38d1cba6 100644
--- a/src/llama_stack/apis/agents/openai_responses.py
+++ b/src/llama_stack/apis/agents/openai_responses.py
@@ -415,9 +415,12 @@ class OpenAIResponseInputToolWebSearch(BaseModel):
     """
 
     # Must match values of WebSearchToolTypes above
-    type: Literal["web_search"] | Literal["web_search_preview"] | Literal["web_search_preview_2025_03_11"] | Literal["web_search_2025_08_26"] = (
-        "web_search"
-    )
+    type: (
+        Literal["web_search"]
+        | Literal["web_search_preview"]
+        | Literal["web_search_preview_2025_03_11"]
+        | Literal["web_search_2025_08_26"]
+    ) = "web_search"
     # TODO: actually use search_context_size somewhere...
     search_context_size: str | None = Field(default="medium", pattern="^low|medium|high$")
     # TODO: add user_location