diff --git a/src/agents/model-compat.test.ts b/src/agents/model-compat.test.ts
index ce6d12d4b..6311a1229 100644
--- a/src/agents/model-compat.test.ts
+++ b/src/agents/model-compat.test.ts
@@ -24,6 +24,15 @@ describe("normalizeModelCompat", () => {
     expect(normalized.compat?.supportsDeveloperRole).toBe(false);
   });
 
+  it("forces supportsStore off for ovhcloud models", () => {
+    const model = baseModel();
+    model.provider = "ovhcloud";
+    model.baseUrl = "https://oai.endpoints.kepler.ai.cloud.ovh.net/v1";
+    delete (model as { compat?: unknown }).compat;
+    const normalized = normalizeModelCompat(model);
+    expect(normalized.compat?.supportsStore).toBe(false);
+  });
+
   it("leaves non-zai models untouched", () => {
     const model = {
       ...baseModel(),
diff --git a/src/agents/model-compat.ts b/src/agents/model-compat.ts
index 741819073..8ec5f9ffa 100644
--- a/src/agents/model-compat.ts
+++ b/src/agents/model-compat.ts
@@ -5,16 +5,27 @@ function isOpenAiCompletionsModel(model: Model<Api>): model is Model<"openai-com
 }
 
 export function normalizeModelCompat(model: Model<Api>): Model<Api> {
+  if (!isOpenAiCompletionsModel(model)) return model;
+
   const baseUrl = model.baseUrl ?? "";
   const isZai = model.provider === "zai" || baseUrl.includes("api.z.ai");
-  if (!isZai || !isOpenAiCompletionsModel(model)) return model;
+  const isOvhcloud = model.provider === "ovhcloud" || baseUrl.includes("ovh.net");
+  if (!isZai && !isOvhcloud) return model;
 
   const openaiModel = model as Model<"openai-completions">;
   const compat = openaiModel.compat ?? undefined;
-  if (compat?.supportsDeveloperRole === false) return model;
 
-  openaiModel.compat = compat
-    ? { ...compat, supportsDeveloperRole: false }
-    : { supportsDeveloperRole: false };
+  if (isZai) {
+    if (compat?.supportsDeveloperRole === false) return model;
+    openaiModel.compat = compat
+      ? { ...compat, supportsDeveloperRole: false }
+      : { supportsDeveloperRole: false };
+  }
+
+  if (isOvhcloud) {
+    if (compat?.supportsStore === false) return model;
+    openaiModel.compat = compat ? { ...compat, supportsStore: false } : { supportsStore: false };
+  }
+
   return openaiModel;
 }