Provider configuration behaviour.

A provider is either:

• A map with :adapter, :base_url, and optionally :api_key
• A module implementing the LLM.Provider behaviour

Built-in provider modules (LLM.Provider.OpenAI, LLM.Provider.Anthropic, etc.) implement this behaviour and provide sensible defaults for their respective APIs.

Implementing a custom provider

defmodule MyApp.Provider do
  @behaviour LLM.Provider

  @impl true
  def name, do: :my_custom

  @impl true
  def default_config do
    %{
      adapter: LLM.Adapter.OpenAI,
      base_url: "https://my-api.example.com/v1",
      api_key: Application.get_env(:my_app, :api_key)
    }
  end
end

Then use it:

LLM.generate("Hello", provider: MyApp.Provider, model: "my-model")