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

# LLM providers

> Supported attacker/judge LLM providers and their env vars.

The attacker and judge LLMs run on a provider you choose. Set the provider's API key in your shell or a `.env` file before running, then reference it by **name** in `attackerLlm.apiKeyEnv`.

## Supported providers

| Provider          | `provider` value    | Env var                        | Default model               | Notes                          |
| ----------------- | ------------------- | ------------------------------ | --------------------------- | ------------------------------ |
| OpenAI            | `openai`            | `OPENAI_API_KEY`               | `gpt-4o-mini`               |                                |
| Anthropic         | `anthropic`         | `ANTHROPIC_API_KEY`            | `claude-3-5-haiku-20241022` |                                |
| Groq              | `groq`              | `GROQ_API_KEY`                 | `llama-3.3-70b-versatile`   |                                |
| Google            | `google`            | `GOOGLE_GENERATIVE_AI_API_KEY` | `gemini-2.0-flash`          |                                |
| DeepSeek          | `deepseek`          | `DEEPSEEK_API_KEY`             | `deepseek-chat`             |                                |
| Azure OpenAI      | `azure`             | `AZURE_OPENAI_API_KEY`         | `gpt-4o-mini`               | requires `attackerLlm.baseURL` |
| OpenAI-compatible | `openai-compatible` | `OPFOR_API_KEY`                | (no default)                | requires `attackerLlm.baseURL` |

<Note>`openai-compatible` covers LiteLLM, OpenRouter, Ollama, vLLM, and any other OpenAI-shaped endpoint — point `baseURL` at it.</Note>

## Configuring a model

```json theme={null}
"attackerLlm": {
  "provider": "openai",
  "model": "gpt-4o-mini",
  "apiKeyEnv": "OPENAI_API_KEY"
},
"judgeLlm": {
  "provider": "anthropic",
  "model": "claude-3-5-haiku-20241022",
  "apiKeyEnv": "ANTHROPIC_API_KEY"
}
```

`judgeLlm` is optional — it falls back to `attackerLlm` when omitted. For `azure` and `openai-compatible`, add `"baseURL"`.

## Setting keys

```bash theme={null}
export OPENAI_API_KEY=sk-...
export GROQ_API_KEY=gsk_...
export ANTHROPIC_API_KEY=sk-ant-...
```

The CLI loads `.env` from the working directory automatically. Load a non-default path with `--env <path>`.

<Warning>Add `.env` to `.gitignore`. The config stores the env var **name** (`apiKeyEnv`), never the key value.</Warning>