What this model error usually means
MoonshotAI: Kimi K2 Thinking returning 400 / model capability unsupported means you should first confirm whether model ID moonshotai/kimi-k2-thinking is visible for this Moonshot AI key, then separate permission, context, capability, rate limit, or route issues.
- Model: moonshotai/kimi-k2-thinking
- Provider: Moonshot AI
- Status code: 400