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/scripts/generate-models.ts

@@ -62,48 +62,11 @@ async function fetchOpenRouterModels(): Promise<NormalizedModel[]> {
 			let provider = "";
 			let modelKey = model.id;
 
-			// Map provider prefixes to our provider names
-			if (model.id.startsWith("google/")) {
-				provider = "google";
-				modelKey = model.id.replace("google/", "");
-			} else if (model.id.startsWith("openai/")) {
-				provider = "openai";
-				modelKey = model.id.replace("openai/", "");
-			} else if (model.id.startsWith("anthropic/")) {
-				provider = "anthropic";
-				modelKey = model.id.replace("anthropic/", "");
-
-				// Fix dot notation to dash notation for ALL Anthropic models
-				modelKey = modelKey.replace(/\./g, "-");
-
-				// Map version-less models to -latest aliases
-				if (modelKey === "claude-3-5-haiku") {
-					modelKey = "claude-3-5-haiku-latest";
-				} else if (modelKey === "claude-3-5-sonnet") {
-					modelKey = "claude-3-5-sonnet-latest";
-				} else if (modelKey === "claude-3-7-sonnet") {
-					modelKey = "claude-3-7-sonnet-latest";
-				} else if (modelKey === "claude-3-7-sonnet:thinking") {
-					modelKey = "claude-3-7-sonnet-latest:thinking";
-				}
-				// Map numbered versions to proper format
-				else if (modelKey === "claude-opus-4-1") {
-					modelKey = "claude-opus-4-1";
-				} else if (modelKey === "claude-opus-4") {
-					modelKey = "claude-opus-4-0";
-				} else if (modelKey === "claude-sonnet-4") {
-					modelKey = "claude-sonnet-4-0";
-				}
-				// Map old 3.x models to their specific dates
-				else if (modelKey === "claude-3-haiku") {
-					modelKey = "claude-3-haiku-20240307";
-				} else if (modelKey === "claude-3-sonnet") {
-					modelKey = "claude-3-sonnet-20240229";
-				} else if (modelKey === "claude-3-opus") {
-					modelKey = "claude-3-opus-20240229";
-				} else {
-					modelKey = modelKey.replace("\.", "-");
-				}
+			// Skip models that we get from models.dev (Anthropic, Google, OpenAI)
+			if (model.id.startsWith("google/") || 
+			    model.id.startsWith("openai/") || 
+			    model.id.startsWith("anthropic/")) {
+				continue;
 			} else if (model.id.startsWith("x-ai/")) {
 				provider = "xai";
 				modelKey = model.id.replace("x-ai/", "");
@@ -113,8 +76,8 @@ async function fetchOpenRouterModels(): Promise<NormalizedModel[]> {
 				modelKey = model.id; // Keep full ID for OpenRouter
 			}
 
-			// Skip if not one of our supported providers
-			if (!["google", "openai", "anthropic", "xai", "openrouter"].includes(provider)) {
+			// Skip if not one of our supported providers from OpenRouter
+			if (!["xai", "openrouter"].includes(provider)) {
 				continue;
 			}
 
@@ -172,6 +135,78 @@ async function loadModelsDevData(): Promise<NormalizedModel[]> {
 
 		const models: NormalizedModel[] = [];
 
+		// Process Anthropic models
+		if (data.anthropic?.models) {
+			for (const [modelId, model] of Object.entries(data.anthropic.models)) {
+				const m = model as ModelsDevModel;
+				if (m.tool_call !== true) continue;
+
+				models.push({
+					id: modelId,
+					name: m.name || modelId,
+					provider: "anthropic",
+					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,
+					},
+					contextWindow: m.limit?.context || 4096,
+					maxTokens: m.limit?.output || 4096,
+				});
+			}
+		}
+
+		// Process Google models
+		if (data.google?.models) {
+			for (const [modelId, model] of Object.entries(data.google.models)) {
+				const m = model as ModelsDevModel;
+				if (m.tool_call !== true) continue;
+
+				models.push({
+					id: modelId,
+					name: m.name || modelId,
+					provider: "google",
+					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,
+					},
+					contextWindow: m.limit?.context || 4096,
+					maxTokens: m.limit?.output || 4096,
+				});
+			}
+		}
+
+		// Process OpenAI models
+		if (data.openai?.models) {
+			for (const [modelId, model] of Object.entries(data.openai.models)) {
+				const m = model as ModelsDevModel;
+				if (m.tool_call !== true) continue;
+
+				models.push({
+					id: modelId,
+					name: m.name || modelId,
+					provider: "openai",
+					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,
+					},
+					contextWindow: m.limit?.context || 4096,
+					maxTokens: m.limit?.output || 4096,
+				});
+			}
+		}
+
 		// Process Groq models
 		if (data.groq?.models) {
 			for (const [modelId, model] of Object.entries(data.groq.models)) {
@@ -231,11 +266,13 @@ async function loadModelsDevData(): Promise<NormalizedModel[]> {
 }
 
 async function generateModels() {
-	// Fetch all models
-	const openRouterModels = await fetchOpenRouterModels();
+	// Fetch models from both sources
+	// models.dev: Anthropic, Google, OpenAI, Groq, Cerebras
+	// OpenRouter: xAI and other providers (excluding Anthropic, Google, OpenAI)
 	const modelsDevModels = await loadModelsDevData();
+	const openRouterModels = await fetchOpenRouterModels();
 
-	// Combine models (models.dev takes priority for Groq/Cerebras)
+	// Combine models (models.dev has priority)
 	const allModels = [...modelsDevModels, ...openRouterModels];
 
 	// Group by provider and deduplicate by model ID

packages/ai/src/providers/google.ts

@@ -6,7 +6,6 @@ import {
 	type GenerateContentParameters,
 	GoogleGenAI,
 	type Part,
-	setDefaultBaseUrls,
 } from "@google/genai";
 import { calculateCost } from "../models.js";
 import type {

packages/ai/src/providers/openai-responses.ts

@@ -93,12 +93,32 @@ export class OpenAIResponsesLLM implements LLM<OpenAIResponsesLLMOptions> {
 			}
 
 			// Add reasoning options for models that support it
-			if (this.modelInfo?.reasoning && (options?.reasoningEffort || options?.reasoningSummary)) {
-				params.reasoning = {
-					effort: options?.reasoningEffort || "medium",
-					summary: options?.reasoningSummary || "auto",
-				};
-				params.include = ["reasoning.encrypted_content"];
+			if (this.modelInfo?.reasoning) {
+				if (options?.reasoningEffort || options?.reasoningSummary) {
+					params.reasoning = {
+						effort: options?.reasoningEffort || "medium",
+						summary: options?.reasoningSummary || "auto",
+					};
+					params.include = ["reasoning.encrypted_content"];
+				} else {
+					params.reasoning = {
+						effort: this.modelInfo.name.startsWith("gpt-5") ? "minimal" : null,
+						summary: null,
+					};
+
+					if (this.modelInfo.name.startsWith("gpt-5")) {
+						// Jesus Christ, see https://community.openai.com/t/need-reasoning-false-option-for-gpt-5/1351588/7
+						input.push({
+							role: "developer",
+							content: [
+								{
+									type: "input_text",
+									text: "# Juice: 0 !important",
+								},
+							],
+						});
+					}
+				}
 			}
 
 			const stream = await this.client.responses.create(params, {

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 () => {