diff --git a/packages/ai/src/auth/oauth/aimlapi.ts b/packages/ai/src/auth/oauth/aimlapi.ts
index a41665514a8..d2611f95bf7 100644
--- a/packages/ai/src/auth/oauth/aimlapi.ts
+++ b/packages/ai/src/auth/oauth/aimlapi.ts
@@ -63,8 +63,10 @@ async function request(
 		options.signal.removeEventListener("abort", onAbort);
 	}
 
+	const label = `${method} ${url}`;
+
 	if (options.expectJson === false) {
-		if (!response.ok) throw new Error(`AI/ML API request failed (HTTP ${response.status})`);
+		if (!response.ok) throw new Error(`AI/ML API request failed: ${label} -> HTTP ${response.status}`);
 		return undefined;
 	}
 
@@ -73,12 +75,12 @@ async function request(
 		const parsed = (await response.json()) as unknown;
 		if (isRecord(parsed)) body = parsed;
 	} catch {
-		if (response.ok) throw new Error("AI/ML API returned invalid JSON");
+		if (response.ok) throw new Error(`AI/ML API returned invalid JSON: ${label}`);
 	}
 
 	if (!response.ok) {
 		const detail = errorDetail(body);
-		throw new Error(`AI/ML API request failed (HTTP ${response.status})${detail ? `: ${detail}` : ""}`);
+		throw new Error(`AI/ML API request failed: ${label} -> HTTP ${response.status}${detail ? `: ${detail}` : ""}`);
 	}
 	return body;
 }
diff --git a/packages/ai/test/aimlapi-oauth.test.ts b/packages/ai/test/aimlapi-oauth.test.ts
index 9e26ccc5868..60c2ac38aef 100644
--- a/packages/ai/test/aimlapi-oauth.test.ts
+++ b/packages/ai/test/aimlapi-oauth.test.ts
@@ -128,7 +128,7 @@ describe.sequential("AI/ML API OAuth", () => {
 				prompt: async () => prompts.shift() ?? "",
 				notify: () => {},
 			}),
-		).rejects.toThrow("AI/ML API request failed (HTTP 400): invalid code");
+		).rejects.toThrow(`AI/ML API request failed: POST ${VERIFY_CODE_URL} -> HTTP 400: invalid code`);
 	});
 
 	it("rejects a successful key response that carries no key", async () => {