Providers & Models

VoltAgent is built directly on top of the Vercel AI SDK. You choose an ai-sdk provider package (OpenAI, Anthropic, Google, Mistral, Groq, Ollama, etc.) and pass the resulting LanguageModel to your Agent via the model prop.

• No extra VoltAgent provider package is required.
• Full compatibility with ai-sdk’s streaming, tool calling, and structured outputs.

Installation​

Install the ai-sdk provider(s) you want to use:

# For example, to use OpenAI:
npm install @ai-sdk/openai

# Or Anthropic:
npm install @ai-sdk/anthropic

# Or Google:
npm install @ai-sdk/google

# For example, to use OpenAI:
yarn add @ai-sdk/openai

# Or Anthropic:
yarn add @ai-sdk/anthropic

# Or Google:
yarn add @ai-sdk/google

# For example, to use OpenAI:
pnpm add @ai-sdk/openai

# Or Anthropic:
pnpm add @ai-sdk/anthropic

# Or Google:
pnpm add @ai-sdk/google

Usage Example​

import { Agent } from "@voltagent/core";
import { openai } from "@ai-sdk/openai";

const agent = new Agent({
  name: "my-agent",
  instructions: "You are a helpful assistant",
  model: openai("gpt-4o-mini"),
});

Available Providers​

First-Party AI SDK Providers​

These providers are maintained by Vercel and offer the highest level of support and integration:

Foundation Models​

Cloud Platforms​

Specialized Providers​

Audio & Speech Providers​

Community Providers​

These providers are created and maintained by the open-source community:

OpenAI-Compatible Providers​

For providers that follow the OpenAI API specification:

Model Capabilities​

The AI providers support different language models with various capabilities. Here are the capabilities of popular models:

Note: This table is not exhaustive. Additional models can be found in the provider documentation pages and on the provider websites.

Migration from Deprecated Providers​

If you're currently using VoltAgent's native providers (@voltagent/anthropic-ai, @voltagent/google-ai, @voltagent/groq-ai), we recommend migrating to the Vercel AI SDK providers:

Before (Deprecated):​

import { AnthropicProvider } from "@voltagent/anthropic-ai";

const provider = new AnthropicProvider({ apiKey: "..." });
const agent = new Agent({
  llm: provider,
  model: "claude-opus-4-1",
});

After (Recommended):​

import { Agent } from "@voltagent/core";
import { anthropic } from "@ai-sdk/anthropic";

const agent = new Agent({
  model: anthropic("claude-3-5-sonnet"),
  instructions: "You are a helpful assistant",
});

Environment Variables​

Most providers use environment variables for API keys:

# OpenAI
OPENAI_API_KEY=your-key

# Anthropic
ANTHROPIC_API_KEY=your-key

# Google
GOOGLE_GENERATIVE_AI_API_KEY=your-key

# Groq
GROQ_API_KEY=your-key

# And so on...

Next Steps​

1. Choose a provider based on your needs (performance, cost, capabilities)
2. Install the corresponding package
3. Configure your API keys
4. Start building with VoltAgent!

For detailed information about each provider, visit the Vercel AI SDK documentation.

Acknowledgments​

The provider lists and model capabilities in this documentation are sourced from the Vercel AI SDK documentation.

A special thanks to the Vercel AI SDK maintainers and community for creating and maintaining this comprehensive ecosystem of AI providers. Their work enables developers to seamlessly integrate with 30+ AI providers through a unified, well-designed interface.

VoltAgent builds upon this excellent foundation to provide a complete framework for building AI agents and workflows.