豆包 Seed 2.1 Pro，更强能力旗舰，256K 上下文。
Vision understanding; Function Calling; JSON mode; context caching; compatible with OpenAI interface; strong reasoning.
Complex reasoning; code generation; long document analysis; agent workflows; enterprise knowledge base; multimodal Q&A.
No image generation; 256K context; rate limits apply. 官方资料（核对日期 2026-09-07）：https://www.robovai.com/zh/docs
Anthropic 官方 CLI 编码智能体，支持多文件编辑、工具调用、长上下文推理。
export ANTHROPIC_AUTH_TOKEN="YOUR_API_KEY"
export ANTHROPIC_BASE_URL="https://api.robovai.com"
export ANTHROPIC_MODEL="doubao-seed-2-1-pro"
claude