diff --git a/.generator/schemas/v2/openapi.yaml b/.generator/schemas/v2/openapi.yaml
index fcf5fd48e2c3..ee9db84ef411 100644
--- a/.generator/schemas/v2/openapi.yaml
+++ b/.generator/schemas/v2/openapi.yaml
@@ -55239,7 +55239,6 @@ components:
           type: string
       required:
         - name
-        - project_id
       type: object
     LLMObsAnnotationQueueDataAttributesResponse:
       description: Attributes of an LLM Observability annotation queue.
@@ -158838,7 +158837,8 @@ paths:
         If you have any feedback, contact [Datadog support](https://docs.datadoghq.com/help/).
     post:
       description: |-
-        Create an annotation queue. The `name` and `project_id` fields are required.
+        Create an annotation queue. The `name` field is required.
+        Optionally associate the queue with a project by providing `project_id`.
         An optional `annotation_schema` can be provided to define the labels for the queue.
         Fields such as `created_by`, `owned_by`, `created_at`, `modified_by`,
         and `modified_at` are inferred by the backend.
diff --git a/packages/datadog-api-client-v2/apis/LLMObservabilityApi.ts b/packages/datadog-api-client-v2/apis/LLMObservabilityApi.ts
index 436ee10a0fcb..32e4effd7bb3 100644
--- a/packages/datadog-api-client-v2/apis/LLMObservabilityApi.ts
+++ b/packages/datadog-api-client-v2/apis/LLMObservabilityApi.ts
@@ -11437,7 +11437,8 @@ export class LLMObservabilityApi {
   }
 
   /**
-   * Create an annotation queue. The `name` and `project_id` fields are required.
+   * Create an annotation queue. The `name` field is required.
+   * Optionally associate the queue with a project by providing `project_id`.
    * An optional `annotation_schema` can be provided to define the labels for the queue.
    * Fields such as `created_by`, `owned_by`, `created_at`, `modified_by`,
    * and `modified_at` are inferred by the backend.
diff --git a/packages/datadog-api-client-v2/models/LLMObsAnnotationQueueDataAttributesRequest.ts b/packages/datadog-api-client-v2/models/LLMObsAnnotationQueueDataAttributesRequest.ts
index 126c5bae3df2..113bdeb2b6a1 100644
--- a/packages/datadog-api-client-v2/models/LLMObsAnnotationQueueDataAttributesRequest.ts
+++ b/packages/datadog-api-client-v2/models/LLMObsAnnotationQueueDataAttributesRequest.ts
@@ -26,7 +26,7 @@ export class LLMObsAnnotationQueueDataAttributesRequest {
   /**
    * Identifier of the project this queue belongs to.
    */
-  "projectId": string;
+  "projectId"?: string;
 
   /**
    * A container for additional, undeclared properties.
@@ -60,7 +60,6 @@ export class LLMObsAnnotationQueueDataAttributesRequest {
     projectId: {
       baseName: "project_id",
       type: "string",
-      required: true,
     },
     additionalProperties: {
       baseName: "additionalProperties",