OpenRouter lists Kimi K3.1 Pro and its Highspeed version

OpenRouter says Kimi K3.1 Pro from Moonshot is live on its platform as moonshotai/kimi-k3.1-pro. It describes a 1M-context, multimodal open-weight model post-trained from Kimi K3 for long-horizon coding and agentic work.

OpenRouter lists the price at $2 per million input tokens and $10 per million output tokens. A Highspeed version, which it says is 2–3× faster, costs $4 per million input and $20 per million output tokens and is chosen from the providers list on the model page.

The benchmark figures in the post are Moonshot's own claims: 65.7% on Terminal-Bench 4.0, against 66.4% for Claude Opus 5.5 and 58.2% for GPT-6 Astra, and 61.2% on its Kimi Code Bench 3.0 Long-horizon, up from 55.95% for K3.