> ## Documentation Index
> Fetch the complete documentation index at: https://env.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Providers Overview

> Supported AI providers in env

# Providers

env supports multiple AI providers, letting you choose the best model for each task.

## Supported Providers

<CardGroup cols={2}>
  <Card title="Anthropic" icon="message" href="/providers/claude">
    Claude 3.5 Sonnet, Claude 3 Opus, Claude 3 Haiku
  </Card>

  <Card title="OpenAI" icon="robot" href="/providers/openai">
    GPT-4o, GPT-4 Turbo, GPT-3.5 Turbo
  </Card>

  <Card title="Google" icon="google" href="/providers/gemini">
    Gemini 1.5 Pro, Gemini 1.5 Flash
  </Card>

  <Card title="xAI" icon="bolt" href="/providers/grok">
    Grok-2, Grok-2 Mini
  </Card>
</CardGroup>

## Comparison

| Provider          | Best For              | Context Window | Speed    |
| ----------------- | --------------------- | -------------- | -------- |
| Claude 3.5 Sonnet | Balanced performance  | 200K           | Fast     |
| Claude 3 Opus     | Complex reasoning     | 200K           | Moderate |
| GPT-4o            | Multimodal tasks      | 128K           | Fast     |
| Gemini 1.5 Pro    | Long context          | 1M             | Moderate |
| Grok-2            | Real-time information | 128K           | Fast     |

## Switching Providers

You can switch providers at any time:

* **In chat**: Use the model dropdown in the top bar
* **Keyboard**: ⌘ + 1 (Claude), ⌘ + 2 (GPT), ⌘ + 3 (Gemini), ⌘ + 4 (Grok)
* **Mid-conversation**: Switch models and continue the same chat

<Tip>
  Different providers have different strengths. Try switching models if you're not getting the results you want.
</Tip>

## Pricing

env doesn't charge for usage — you pay the providers directly via their APIs. Check each provider's pricing:

* [Anthropic Pricing](https://anthropic.com/pricing)
* [OpenAI Pricing](https://openai.com/pricing)
* [Google AI Pricing](https://ai.google.dev/pricing)
* [xAI Pricing](https://x.ai/api)