Claude Opus 4.5

Claude Opus 4.5 is Anthropic's chat model, available here through Lithovas's unified API. It answers questions, writes, reasons, and calls tools in a conversation. It accepts a standard OpenAI-style messages array and streams a reply. Requests run server-side with your Lithovas credit balance, so you get Anthropic quality without managing a separate Anthropic account or key.