Model specification · Moonshot AI

Kimi K3.1 Pro

moonshotai/kimi-k3.1-pro

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...

SpecificationsReported values
Context window
1.0M
Maximum output
944K
Architecture
text+image+video->text
Tokenizer
Other
Knowledge cutoff
—
Moderated
No
Input modalities
textimagevideo
Output modalities
text
Full pricingUSD where reported
PriceStandard
Input$2.00 / M
Output$10.00 / M
Benchmark indexesReported indexes
Intelligence
46.5
Coding
—
Agentic
—
Design Arena Elo
1314
Example workload costsStandard pricing only
WorkloadInput / outputCache shareEstimated cost
Quick check10K / 1K × 10%$0.030
Long analysis100K / 4K × 150%$0.150
Workday20K / 2K × 1,00030%$49.20
More from Moonshot AIAll Moonshot AI models
ModelContextInput / MOutput / MIntel.
Kimi K31.0M$0.192$16.0017.4