Kimi K3.1 Pro

Oct 2026
Kimi K3.1 Pro
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$2.11per task?
$2 / $10per 1M in / out?cache $0.20
48 tok/sfirst token in 3 s?
1Mcontext

Rankingconfiguration unstated?

Alternatives?

Benchmarks

all categories
Chat & Knowledge
MLCR-AA38.3#3
Coding
SciCode60.8#8
SWE Marathonlab51.7
Kimi Code Bench 3.0 Long-horizonlab61.2
Agents & Tool Use
GDPVal-AA v2.1lab1,846
OSWorld V2.1lab79.6
Agents Last Examlab43.2
OfficeQA Pro v2lab64.4
Frontier Financelab58.6
Vision & Documents
BenchCAD w/ toolslab92.7

FAQ

How much does Kimi K3.1 Pro cost?›

$2 per 1M input tokens and $10 per 1M output tokens; cached input $0.20 per 1M. A typical benchmark task costs about $2.11 at default effort.

Is Kimi K3.1 Pro free to use?›

There is no free API; the cheapest paid price is $2 per 1M input tokens.

How good is Kimi K3.1 Pro, and what is it best at?›

#10 of 360 in Chat & Knowledge, #1 of 137 in Coding, #2 of 138 in Agents & Tool Use, #7 of 132 in Vision & Documents. Strongest at: Coding, Reasoning, Long context, Knowledge, Vision.

Is Kimi K3.1 Pro better than Muse Wonder Full?›

On AA Intelligence Index 4.3.2, Kimi K3.1 Pro scores 55.1 vs 55.8 — about the same.

How can I use Kimi K3.1 Pro?›

Through the API of Moonshot AI, Novita.

What is the context window of Kimi K3.1 Pro?›

1M tokens.

When was Kimi K3.1 Pro released? Is there a newer version?›

Released 2026-10-23. It is the current version in its line.

Is Kimi K3.1 Pro open source?›

No, Kimi K3.1 Pro is a closed model available through an API. The closest open-weights option here is MiMo v2.6 Pro.

Can Kimi K3.1 Pro read images?›

It accepts text and images, video as input.

What is Kimi K3.1 Pro?›

Kimi K3.1 Pro is a closed language model from Moonshot AI, released Oct 2026.

What are the best alternatives to Kimi K3.1 Pro?›

Claude Opus 5.5 (cheaper), MiMo v2.6 Pro (open weights).