Pro-tier reasoning & code. Kimi K2.6, Qwen3-Coder 480B, Qwen3.6 Plus, Grok-4 family (4-20, 4-3), DeepSeek V4 Flash, Arcee Trinity Large Thinking, OpenAI gpt-54-mini and gpt-53-codex. OpenAI-compatible. Supports tools/tool_choice and stream:true SSE.