Kimi K3.1 Pro
Moonshot AI · Released Oct 23, 2026
$2
Input price / MTok
#27 of 40$10
Output price / MTok
#27 of 401.0M
Context window
#26 of 4173.5
Tokens / sec
#16 of 2365.7
Terminal-Bench 4.0
#1 of 355
Artificial Analysis Intelligence Index
#2 of 2Summary
Kimi K3.1 Pro is a proprietary language model from Moonshot AI, released on Oct 23, 2026.
At $2 input and $10 output per million tokens, it ranks #27 of 40 for input price, placing it mid-range on input cost.
Its context window of 1.0M tokens ranks #26 of 41 for context depth in this dataset.
It targets coding, agents, reasoning workloads.
Throughput is measured at 73.5 tokens per second (ranked #16 of 23 for throughput).
Post-trained version of Kimi K3 (2.8T total / 104B active MoE). Always-on thinking with reasoning_effort low/high/max (default max). Text, image and video input. Moonshot says full weights ship by Nov 4 2026; until then it is API-only, so openSource is false. Cyber-related training data is removed from the open-weight release.
Benchmarks
| Benchmark | Score | Max | % | Rank | Source |
|---|---|---|---|---|---|
| Terminal-Bench 4.0 | 65.7 | 100 | 65.7% | #1/3 | Moonshot AI (self-reported in launch blo... |
| Artificial Analysis Intelligence Index | 55 | 100 | 55.0% | #2/2 | Artificial Analysis (independent, checke... |
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Speed source: https://artificialanalysis.ai/models/kimi-k3-1-pro