Crate cairn_models 

Model adapters for Cairn.

• AnthropicModel speaks the Messages API natively and preserves extended thinking and prompt caching.
• OpenAiCompatModel speaks Chat Completions, which covers OpenAI, Google Gemini (OpenAI-compatible endpoint), Ollama, vLLM, OpenRouter, Groq, Together and most self-hosted servers.

Structs

AnthropicModel

Native Anthropic Messages API adapter.

OpenAiCompatModel

Chat Completions adapter for any OpenAI-compatible endpoint.

Priced

Attaches pricing to any model, e.g. one built from a provider:model spec.

Pricing

USD per million tokens. Prices change often, so Cairn never hardcodes them; set them from your provider’s current price sheet. A model that is genuinely free should say so explicitly with Pricing::new(0.0, 0.0).

Functions

from_spec

Build a model from a provider:model spec, reading credentials from the environment.