feat(ai): Fetch Anthropic, Google, and OpenAI models from models.dev instead of OpenRouter

- Updated generate-models.ts to fetch these providers directly from models.dev API
- OpenRouter now only used for xAI and other third-party providers
- Fixed test model IDs to match new model names from models.dev
- Removed unused import from google.ts

packages/ai/test/abort.test.ts

@@ -114,7 +114,7 @@ describe("AI Providers Abort Tests", () => {
         let llm: AnthropicLLM;
 
         beforeAll(() => {
-            llm = new AnthropicLLM(getModel("anthropic", "claude-opus-4-1")!, process.env.ANTHROPIC_OAUTH_TOKEN!);
+            llm = new AnthropicLLM(getModel("anthropic", "claude-opus-4-1-20250805")!, process.env.ANTHROPIC_OAUTH_TOKEN!);
         });
 
         it("should abort mid-stream", async () => {

packages/ai/test/handoff.test.ts

@@ -4,7 +4,7 @@ import { OpenAICompletionsLLM } from "../src/providers/openai-completions.js";
 import { OpenAIResponsesLLM } from "../src/providers/openai-responses.js";
 import { AnthropicLLM } from "../src/providers/anthropic.js";
 import type { LLM, Context, AssistantMessage, Tool, Message } from "../src/types.js";
-import { getModel } from "../src/models.js";
+import { createLLM, getModel } from "../src/models.js";
 
 // Tool for testing
 const weatherTool: Tool = {

packages/ai/test/models.ts

@@ -0,0 +1,31 @@
+import { GoogleGenAI } from "@google/genai";
+import OpenAI from "openai";
+
+const ai = new GoogleGenAI({});
+
+async function main() {
+    /*let pager = await ai.models.list();
+    do {
+        for (const model of pager.page) {
+            console.log(JSON.stringify(model, null, 2));
+            console.log("---");
+        }
+        if (!pager.hasNextPage()) break;
+        await pager.nextPage();
+    } while (true);*/
+
+    const openai = new OpenAI();
+    const response = await openai.models.list();
+    do {
+        const page = response.data;
+        for (const model of page) {
+            const info = await openai.models.retrieve(model.id);
+            console.log(JSON.stringify(model, null, 2));
+            console.log("---");
+        }
+        if (!response.hasNextPage()) break;
+        await response.getNextPage();
+    } while (true);
+}
+
+await main();

packages/ai/test/providers.test.ts

@@ -340,11 +340,11 @@ describe("AI Providers E2E Tests", () => {
         });
     });
 
-    describe.skipIf(!process.env.ANTHROPIC_OAUTH_TOKEN)("Anthropic Provider (claude-sonnet-4-0)", () => {
+    describe.skipIf(!process.env.ANTHROPIC_OAUTH_TOKEN)("Anthropic Provider (claude-sonnet-4-20250514)", () => {
         let llm: AnthropicLLM;
 
         beforeAll(() => {
-            llm = new AnthropicLLM(getModel("anthropic", "claude-sonnet-4-0")!, process.env.ANTHROPIC_OAUTH_TOKEN!);
+            llm = new AnthropicLLM(getModel("anthropic", "claude-sonnet-4-20250514")!, process.env.ANTHROPIC_OAUTH_TOKEN!);
         });
 
         it("should complete basic text generation", async () => {