# `ADK.LLM.OpenAI`
[🔗](https://github.com/zeroasterisk/adk-elixir/blob/main/lib/adk/llm/openai.ex#L1)

OpenAI-compatible LLM backend using the chat completions API via Req.

Works with OpenAI, Ollama, Together, and any OpenAI-compatible provider.

## Configuration

    # config/config.exs
    config :adk, :openai_api_key, "sk-..."
    config :adk, :openai_base_url, "https://api.openai.com/v1"  # optional

    # Or via environment variables
    OPENAI_API_KEY=sk-...
    OPENAI_BASE_URL=http://localhost:11434/v1  # e.g. Ollama

## Usage

    config :adk, :llm_backend, ADK.LLM.OpenAI

    ADK.LLM.OpenAI.generate("gpt-4o", %{
      instruction: "You are helpful.",
      messages: [%{role: :user, parts: [%{text: "Hello"}]}]
    })

---

*Consult [api-reference.md](api-reference.md) for complete listing*