feat(ai,coding-agent): add Grok 4.7 support

packages/ai/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- Added Grok 4.7 to the built-in xAI model catalog with long-context pricing metadata.
+
 ### Fixed
 
 - Fixed image-only user messages being rejected by some OpenAI-compatible providers because they included an empty text part ([#9797](https://github.com/earendil-works/pi/issues/9797))

packages/ai/README.md

@@ -833,7 +833,7 @@ Many models support thinking/reasoning capabilities where they can show their in
 const model = models.getModel('anthropic', 'claude-sonnet-4-5')!;
 // or models.getModel('openai', 'gpt-5-mini');
 // or models.getModel('google', 'gemini-2.5-flash');
-// or models.getModel('xai', 'grok-4.6');
+// or models.getModel('xai', 'grok-4.7');
 
 // Check if model supports reasoning
 if (model.reasoning) {

packages/ai/scripts/generate-models.ts

@@ -2030,12 +2030,7 @@ async function loadModelsDevData(): Promise<Model<any>[]> {
 					compat: { ...XAI_RESPONSES_COMPAT },
 					reasoning: m.reasoning === true,
 					input: m.modalities?.input?.includes("image") ? ["text", "image"] : ["text"],
-					cost: {
-						input: m.cost?.input || 0,
-						output: m.cost?.output || 0,
-						cacheRead: m.cost?.cache_read || 0,
-						cacheWrite: m.cost?.cache_write || 0,
-					},
+					cost: getModelsDevCost(m.cost),
 					contextWindow: m.limit?.context || 4096,
 					maxTokens: m.limit?.output || 4096,
 				});

packages/ai/test/model-catalog-types.test.ts

@@ -8,6 +8,8 @@ it("derives model API, ID, and provider literals from grouped model data", () =>
 	expectTypeOf(XAI_MODELS["grok-4.5"].provider).toEqualTypeOf<"xai">();
 	expectTypeOf(XAI_MODELS["grok-4.6"].api).toEqualTypeOf<"openai-responses">();
 	expectTypeOf(XAI_MODELS["grok-4.6"].id).toEqualTypeOf<"grok-4.6">();
+	expectTypeOf(XAI_MODELS["grok-4.7"].api).toEqualTypeOf<"openai-responses">();
+	expectTypeOf(XAI_MODELS["grok-4.7"].id).toEqualTypeOf<"grok-4.7">();
 	expectTypeOf(XAI_MODELS["grok-4.3"].api).toEqualTypeOf<"openai-responses">();
 });
 

packages/ai/test/stream.test.ts

@@ -540,8 +540,8 @@ describe("Generate E2E Tests", () => {
 		});
 	});
 
-	describe.skipIf(!process.env.XAI_API_KEY)("xAI Provider (grok-4.3 via OpenAI Responses)", () => {
-		const llm = getModel("xai", "grok-4.3");
+	describe.skipIf(!process.env.XAI_API_KEY)("xAI Provider (grok-4.7 via OpenAI Responses)", () => {
+		const llm = getModel("xai", "grok-4.7");
 
 		it("should complete basic text generation", { retry: 3 }, async () => {
 			await basicTextGeneration(llm);

packages/ai/test/xai-responses.test.ts

@@ -132,9 +132,35 @@ describe("xAI Responses provider", () => {
 		}
 		expect(getSupportedThinkingLevels(XAI_MODELS["grok-4.5"])).toEqual(["low", "medium", "high"]);
 		expect(getSupportedThinkingLevels(XAI_MODELS["grok-4.6"])).toEqual(["low", "medium", "high", "xhigh"]);
+		expect(getSupportedThinkingLevels(XAI_MODELS["grok-4.7"])).toEqual(["low", "medium", "high", "xhigh"]);
 		expect(getSupportedThinkingLevels(XAI_MODELS["grok-4.3"])).toEqual(["off", "low", "medium", "high"]);
 	});
 
+	it("includes Grok 4.7 capabilities and long-context pricing", () => {
+		expect(XAI_MODELS["grok-4.7"]).toMatchObject({
+			api: "openai-responses",
+			reasoning: true,
+			input: ["text", "image"],
+			contextWindow: 500000,
+			maxTokens: 500000,
+			cost: {
+				input: 2,
+				output: 6,
+				cacheRead: 0.5,
+				cacheWrite: 0,
+				tiers: [
+					{
+						inputTokensAbove: 200000,
+						input: 4,
+						output: 12,
+						cacheRead: 1,
+						cacheWrite: 0,
+					},
+				],
+			},
+		});
+	});
+
 	it("uses /responses with bearer auth and xAI-compatible request fields", async () => {
 		const captured = await captureRequest(
 			XAI_MODELS["grok-4.5"],
@@ -188,9 +214,9 @@ describe("xAI Responses provider", () => {
 		expect(captured.body).not.toHaveProperty("reasoning");
 	});
 
-	it("uses /responses for Grok 4.6 with xhigh effort and encrypted reasoning", async () => {
+	it("uses /responses for Grok 4.7 with xhigh effort and encrypted reasoning", async () => {
 		const captured = await captureRequest(
-			XAI_MODELS["grok-4.6"],
+			XAI_MODELS["grok-4.7"],
 			{
 				systemPrompt: "You are a careful coding assistant.",
 				messages: [{ role: "user", content: "hello", timestamp: 1 }],
@@ -203,7 +229,7 @@ describe("xAI Responses provider", () => {
 
 		expect(captured.url).toBe("https://api.x.ai/v1/responses");
 		expect(captured.body).toMatchObject({
-			model: "grok-4.6",
+			model: "grok-4.7",
 			store: false,
 			stream: true,
 			reasoning: { effort: "xhigh" },

packages/coding-agent/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+### Changed
+
+- Changed the default xAI model to Grok 4.7.
+
 ## [0.87.0] - 2026-09-21
 
 ### New Features

packages/coding-agent/src/core/model-resolver.ts

@@ -32,7 +32,7 @@ export const defaultModelPerProvider: Record<KnownProvider, string> = {
 	"github-copilot": "gpt-5.4",
 	openrouter: "moonshotai/kimi-k2.6",
 	"vercel-ai-gateway": "zai/glm-5.1",
-	xai: "grok-4.6",
+	xai: "grok-4.7",
 	groq: "openai/gpt-oss-120b",
 	cerebras: "gpt-oss-120b",
 	zai: "glm-5.3",

packages/coding-agent/test/model-resolver.test.ts

@@ -735,7 +735,7 @@ describe("default model selection", () => {
 	});
 
 	test("xai default tracks current model", () => {
-		expect(defaultModelPerProvider.xai).toBe("grok-4.6");
+		expect(defaultModelPerProvider.xai).toBe("grok-4.7");
 	});
 
 	test("qwen token plan individual default tracks current model", () => {