# Kimi K3.1 Pro — price & specs

Source: https://modelbank.ai/models/kimi-k3.1-pro · updated 2026-11-01 · ModelBank

| Field | Value |
|---|---|
| Vendor | Moonshot AI |
| Input price | $2 / 1M tokens |
| Output price | $10 / 1M tokens |
| Cached input | $0.2 / 1M tokens |
| Context window | 1,048,576 tokens |
| Max output | 943,718 tokens |
| Input modalities | text,image,video |
| Reasoning / tool use | yes / yes |
| Intelligence / coding index | 46 / — |
| Released | 2026-10-23 |
| Retirement date | none announced |

## About

Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model and a post-trained successor to Kimi K3, with a 1M-token context window. It is built for long-horizon coding, 3D...

## Price history

- 2026-10-23: $2 in / $10 out

## Cheaper alternatives with similar intelligence

- [GPT-6.1 Terra](https://modelbank.ai/models/gpt-6.1-terra): $1 / $5, intelligence 51

JSON: https://modelbank.ai/api/v1/models/kimi-k3.1-pro