Last API is a Chinese LLM relay covering 117+ models across Anthropic, OpenAI (GPT-5.x, Codex), Google Gemini, DeepSeek, Moonshot Kimi, 智谱, Alibaba Qwen, SAP AI Core and OpenCode Zen. It exposes AWS / Vertex / official channels plus dedicated Claude reverse-engineered groups (claude-reverse, claude-max, claude-max-cc) and a Codex group. Recent additions include DeepSeek V4, GPT-5.4 Codex and Claude Opus/Sonnet 4.x. Pricing wiki on Feishu; business contact QQ 215278525, support group 957036065.

