diff --git a/src/agents/model-compat.test.ts b/src/agents/model-compat.test.ts
index ce6d12d4b..9b6538cd2 100644
--- a/src/agents/model-compat.test.ts
+++ b/src/agents/model-compat.test.ts
@@ -41,4 +41,26 @@ describe("normalizeModelCompat", () => {
     const normalized = normalizeModelCompat(model);
     expect(normalized.compat?.supportsDeveloperRole).toBe(false);
   });
+
+  it("forces supportsDeveloperRole off for nearai provider", () => {
+    const model = {
+      ...baseModel(),
+      provider: "nearai",
+      baseUrl: "https://cloud-api.near.ai/v1",
+    };
+    delete (model as { compat?: unknown }).compat;
+    const normalized = normalizeModelCompat(model);
+    expect(normalized.compat?.supportsDeveloperRole).toBe(false);
+  });
+
+  it("forces supportsDeveloperRole off for near.ai baseUrl", () => {
+    const model = {
+      ...baseModel(),
+      provider: "custom",
+      baseUrl: "https://cloud-api.near.ai/v1",
+    };
+    delete (model as { compat?: unknown }).compat;
+    const normalized = normalizeModelCompat(model);
+    expect(normalized.compat?.supportsDeveloperRole).toBe(false);
+  });
 });
diff --git a/src/agents/model-compat.ts b/src/agents/model-compat.ts
index 741819073..b9aa38c3e 100644
--- a/src/agents/model-compat.ts
+++ b/src/agents/model-compat.ts
@@ -7,7 +7,8 @@ function isOpenAiCompletionsModel(model: Model<Api>): model is Model<"openai-com
 export function normalizeModelCompat(model: Model<Api>): Model<Api> {
   const baseUrl = model.baseUrl ?? "";
   const isZai = model.provider === "zai" || baseUrl.includes("api.z.ai");
-  if (!isZai || !isOpenAiCompletionsModel(model)) return model;
+  const isNearAi = model.provider === "nearai" || baseUrl.includes("cloud-api.near.ai");
+  if ((!isZai && !isNearAi) || !isOpenAiCompletionsModel(model)) return model;
 
   const openaiModel = model as Model<"openai-completions">;
   const compat = openaiModel.compat ?? undefined;