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Package anthropic adapts Anthropic Messages-compatible APIs to sigma.

Package bedrock adapts Amazon Bedrock Converse Stream to sigma.

Package fireworks adapts Fireworks AI's OpenAI-compatible Chat Completions endpoint to sigma.

Package google adapts Google Generative AI and Google Vertex AI to sigma.

Package mistral adapts the Mistral Conversations API to sigma.

Package openai adapts OpenAI-compatible APIs to sigma.

Package opencode routes OpenCode Zen and OpenCode Go models to the Sigma adapter matching each model's OpenCode API family.

Package openrouter adapts OpenRouter's image-capable Chat Completions API to sigma's image provider interface.

Package xai adapts xAI's Grok OpenAI-compatible Chat Completions endpoint to sigma.