Add xAI/Grok and Mistral AI support via Vercel AI SDK

Author: bhouston

packages/agent/package.json

@@ -45,7 +45,9 @@
   "license": "MIT",
   "dependencies": {
     "@ai-sdk/anthropic": "^1.1.13",
+    "@ai-sdk/mistral": "^1.1.13",
     "@ai-sdk/openai": "^1.2.0",
+    "@ai-sdk/xai": "^1.1.12",
     "@mozilla/readability": "^0.5.0",
     "@playwright/test": "^1.50.1",
     "@vitest/browser": "^3.0.5",

packages/agent/src/core/toolAgent/config.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from 'vitest';
+
+import { getModel } from './config';
+
+describe('getModel', () => {
+  it('should return the correct model for anthropic', () => {
+    const model = getModel('anthropic', 'claude-3-7-sonnet-20250219');
+    expect(model).toBeDefined();
+    expect(model.provider).toBe('anthropic.messages');
+  });
+
+  it('should return the correct model for openai', () => {
+    const model = getModel('openai', 'gpt-4o-2024-05-13');
+    expect(model).toBeDefined();
+    expect(model.provider).toBe('openai.chat');
+  });
+
+  it('should return the correct model for ollama', () => {
+    const model = getModel('ollama', 'llama3');
+    expect(model).toBeDefined();
+    expect(model.provider).toBe('ollama.chat');
+  });
+
+  it('should return the correct model for xai', () => {
+    const model = getModel('xai', 'grok-1');
+    expect(model).toBeDefined();
+    expect(model.provider).toBe('xai.chat');
+  });
+
+  it('should return the correct model for mistral', () => {
+    const model = getModel('mistral', 'mistral-large-latest');
+    expect(model).toBeDefined();
+    expect(model.provider).toBe('mistral.chat');
+  });
+
+  it('should throw an error for unknown provider', () => {
+    expect(() => {
+      // @ts-expect-error Testing invalid provider
+      getModel('unknown', 'model');
+    }).toThrow('Unknown model provider: unknown');
+  });
+});

packages/agent/src/core/toolAgent/config.ts

@@ -1,13 +1,20 @@
 import { execSync } from 'child_process';
 
 import { anthropic } from '@ai-sdk/anthropic';
+import { mistral } from '@ai-sdk/mistral';
 import { openai } from '@ai-sdk/openai';
+import { xai } from '@ai-sdk/xai';
 import { createOllama, ollama } from 'ollama-ai-provider';
 
 /**
  * Available model providers
  */
-export type ModelProvider = 'anthropic' | 'openai' | 'ollama';
+export type ModelProvider =
+  | 'anthropic'
+  | 'openai'
+  | 'ollama'
+  | 'xai'
+  | 'mistral';
 
 /**
  * Get the model instance based on provider and model name
@@ -29,6 +36,10 @@ export function getModel(
         })(modelName);
       }
       return ollama(modelName);
+    case 'xai':
+      return xai(modelName);
+    case 'mistral':
+      return mistral(modelName);
     default:
       throw new Error(`Unknown model provider: ${provider}`);
   }

packages/cli/README.md

@@ -4,7 +4,7 @@ Command-line interface for AI-powered coding tasks.
 
 ## Features
 
-- 🤖 **AI-Powered**: Leverages Anthropic's Claude, OpenAI models, and Ollama for intelligent coding assistance
+- 🤖 **AI-Powered**: Leverages Anthropic's Claude, OpenAI models, xAI/Grok, Mistral AI, and Ollama for intelligent coding assistance
 - 🛠️ **Extensible Tool System**: Modular architecture with various tool categories
 - 🔄 **Parallel Execution**: Ability to spawn sub-agents for concurrent task processing
 - 📝 **Self-Modification**: Can modify code, it was built and tested by writing itself
@@ -82,7 +82,7 @@ mycoder config set modelName gpt-4o-2024-05-13
 
 ### Model Selection
 
-MyCoder supports Anthropic, OpenAI, and Ollama models. You can configure which model provider and model name to use with the following commands:
+MyCoder supports Anthropic, OpenAI, xAI/Grok, Mistral AI, and Ollama models. You can configure which model provider and model name to use with the following commands:
 
 ```bash
 # Use OpenAI models
@@ -93,6 +93,14 @@ mycoder config set modelName gpt-4o-2024-05-13  # or any other OpenAI model
 mycoder config set modelProvider anthropic
 mycoder config set modelName claude-3-7-sonnet-20250219  # or any other Anthropic model
 
+# Use xAI/Grok models
+mycoder config set modelProvider xai
+mycoder config set modelName grok-1  # or any other xAI model
+
+# Use Mistral AI models
+mycoder config set modelProvider mistral
+mycoder config set modelName mistral-large-latest  # or any other Mistral model
+
 # Use Ollama models (local)
 mycoder config set modelProvider ollama
 mycoder config set modelName llama3-groq-tool-use  # or any other model available in your Ollama instance
@@ -135,6 +143,8 @@ mycoder config set ollamaBaseUrl http://your-ollama-server:11434/api
 
 - `ANTHROPIC_API_KEY`: Your Anthropic API key (required when using Anthropic models)
 - `OPENAI_API_KEY`: Your OpenAI API key (required when using OpenAI models)
+- `XAI_API_KEY`: Your xAI API key (required when using xAI/Grok models)
+- `MISTRAL_API_KEY`: Your Mistral AI API key (required when using Mistral models)
 
 Note: Ollama models do not require an API key as they run locally or on a specified server.
 

packages/cli/src/commands/$default.ts

@@ -107,6 +107,21 @@ export const command: CommandModule<SharedOptions, DefaultArgs> = {
           'You can get an API key from https://platform.openai.com/api-keys',
         );
         throw new Error('OpenAI API key not found');
+      } else if (userModelProvider === 'xai' && !process.env.XAI_API_KEY) {
+        logger.error(
+          'No xAI API key found. Please set the XAI_API_KEY environment variable.',
+          'You can get an API key from https://platform.xai.com',
+        );
+        throw new Error('xAI API key not found');
+      } else if (
+        userModelProvider === 'mistral' &&
+        !process.env.MISTRAL_API_KEY
+      ) {
+        logger.error(
+          'No Mistral API key found. Please set the MISTRAL_API_KEY environment variable.',
+          'You can get an API key from https://console.mistral.ai/api-keys/',
+        );
+        throw new Error('Mistral API key not found');
       }
       // No API key check needed for Ollama as it uses a local server
 
@@ -157,7 +172,12 @@ export const command: CommandModule<SharedOptions, DefaultArgs> = {
       const agentConfig = {
         ...DEFAULT_CONFIG,
         model: getModel(
-          userModelProvider as 'anthropic' | 'openai' | 'ollama',
+          userModelProvider as
+            | 'anthropic'
+            | 'openai'
+            | 'ollama'
+            | 'xai'
+            | 'mistral',
           userModelName,
           { ollamaBaseUrl: config.ollamaBaseUrl },
         ),

packages/cli/src/options.ts

@@ -22,7 +22,7 @@ export const sharedOptions = {
   modelProvider: {
     type: 'string',
     description: 'AI model provider to use',
-    choices: ['anthropic', 'openai'],
+    choices: ['anthropic', 'openai', 'ollama', 'xai', 'mistral'],
   } as const,
   modelName: {
     type: 'string',