diff --git a/packages/coding-agent/src/core/provider-attribution.ts b/packages/coding-agent/src/core/provider-attribution.ts
index 91265c92..97ad1cfa 100644
--- a/packages/coding-agent/src/core/provider-attribution.ts
+++ b/packages/coding-agent/src/core/provider-attribution.ts
@@ -7,6 +7,7 @@ const NVIDIA_NIM_HOST = "integrate.api.nvidia.com";
 const CLOUDFLARE_API_HOST = "api.cloudflare.com";
 const CLOUDFLARE_AI_GATEWAY_HOST = "gateway.ai.cloudflare.com";
 const OPENCODE_HOST = "opencode.ai";
+const VERCEL_GATEWAY_HOST = "ai-gateway.vercel.sh";
 
 function matchesHost(baseUrl: string, expectedHost: string): boolean {
 	try {
@@ -33,6 +34,10 @@ function isCloudflareModel(model: Model<Api>): boolean {
 	);
 }
 
+function isVercelGatewayModel(model: Model<Api>): boolean {
+	return model.provider === "vercel-ai-gateway" || matchesHost(model.baseUrl, VERCEL_GATEWAY_HOST);
+}
+
 function getDefaultAttributionHeaders(
 	model: Model<Api>,
 	settingsManager: SettingsManager,
@@ -61,6 +66,13 @@ function getDefaultAttributionHeaders(
 		};
 	}
 
+	if (isVercelGatewayModel(model)) {
+		return {
+			"http-referer": "https://pi.dev",
+			"x-title": "pi",
+		};
+	}
+
 	return undefined;
 }
 
diff --git a/packages/coding-agent/test/sdk-openrouter-attribution.test.ts b/packages/coding-agent/test/sdk-openrouter-attribution.test.ts
index 9f035189..b03e5bb6 100644
--- a/packages/coding-agent/test/sdk-openrouter-attribution.test.ts
+++ b/packages/coding-agent/test/sdk-openrouter-attribution.test.ts
@@ -196,6 +196,13 @@ describe("createAgentSession provider attribution headers", () => {
 		expect(headers?.["X-OpenRouter-Categories"]).toBe("provider-category");
 	});
 
+	it("adds default attribution headers for Vercel AI Gateway models", async () => {
+		const headers = await captureHeaders(createModel("vercel-ai-gateway", "https://ai-gateway.vercel.sh/v1"));
+
+		expect(headers?.["http-referer"]).toBe("https://pi.dev");
+		expect(headers?.["x-title"]).toBe("pi");
+	});
+
 	it("adds default attribution headers for direct NVIDIA NIM endpoints", async () => {
 		const headers = await captureHeaders(createModel("custom-nim", "https://integrate.api.nvidia.com/v1"));