Moonshot · released Oct 23, 2026
Kimi K3.1 Pro
Kimi K3.1 Pro is Moonshot's newest model, and early tests put it near the top for coding and sites.
New6 days oldThinks before answering
- Input price
- $2 / M
- Output price
- $10 / M
- Context
- 1M tokens
- Longest reply
- 1M
- Reads
- text, image, video
- Knows up to
- –
Where it shines
- It scores 1695 in web dev, ahead of Gemini 4 Argon.
- Moonshot reports 65.7% on Terminal-Bench 4.0, 0.7 behind Opus 5.5.
- It costs $2 in, $10 out, about a third less than K3.
Where it struggles
- Artificial Analysis calls it slow and somewhat verbose.
- Moonshot promises its weights by Nov 4, so it isn't open yet.
Where you can use it
- Kimi.aiAppAlso in Kimi Work and Kimi Code.
- Kimi APIAPI$2 in / $10 out per million tokens. Highspeed runs 2-3x faster.
- OpenRouterAPIListed as
moonshotai/kimi-k3.1-pro
How it scores on each job
Scores run 0 to 100 and blend every measure we have for that job. The number after the dot is its rank among the 33 models in the lineup.
The evidence
| Measure | Score | Rank in lineup | Source |
|---|---|---|---|
| WebDev Arena | 1695 | #6 | LMArena |
Compare it with these
Open weights9 months old
Moonshot
Kimi K2.5
Kimi K2.5 is an older open Moonshot model that still handles long documents.
Long documents
- Price
- $0.50 in · $2.5 out
- Context
- 262K
3 weeks old
Mistral
Mistral Large 4
Mistral Large 4 is Mistral's October flagship and lags the leaders on most jobs.
Coding
- Price
- $1.36 in · $4.18 out
- Context
- 1M
New
OpenAI
GPT-6.1 Terra
GPT-6.1 Terra is OpenAI's new mid-tier model for computer use, and its early math scores are strong.
Hard problems
- Price
- $1 in · $5 out
- Context
- 1.1M