Kimi K2.6Open Weight
Released
Kimi K2.6 is an AI model released by Moonshot AI on Tuesday, Apr 21 2026, 84 days after Kimi K2.5. It is an open-weight model — the trained weights are available to download and run. It is a 1T parameter model with a 256k token context window. Benchmark results (shown below) cover BullshitBench v2, SWE-Bench Verified, Next.js Evals, LiveCodeBench, BrowseComp, Humanity's Last Exam, and 2 more.
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API pricing
- InputWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it.
- $0.95
- Cached inputA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again.
- $0.16
- OutputWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one.
- $4.00
Available from
| DigitalOcean | $0.57 | $2.40 | 256K | — |
|---|---|---|---|---|
| Decart | $0.5865 | $2.4696 | 256K | fp4 |
| StreamLake | $0.5985 | $2.52 | 256K | fp8 |
| Inceptron | $0.516 | $2.87 | 256K | int4 |
| Chutes | $0.58 | $3.40 | 256K | int4 |
| SiliconFlow | $0.77 | $3.40 | 256K | fp8 |
| Novita | $0.80 | $3.40 | 256K | — |
| CoreWeave | $0.65 | $3.41 | 256K | fp4 |
| DeepInfra | $0.75 | $3.50 | 256K | fp4 |
| Parasail | $0.75 | $3.50 | 256K | int4 |
| GMICloud | $0.855 | $3.60 | 256K | fp8 |
| AtlasCloud | $0.95 | $4.00 | 256K | int4 |
| Baidu | $0.95 | $4.00 | 256K | fp4 |
| BaseTen | $0.95 | $4.00 | 256K | fp4 |
| Cloudflare | $0.95 | $4.00 | 256K | — |
| Fireworks | $0.95 | $4.00 | 256K | — |
| Phala | $1.09 | $4.60 | 256K | — |
Benchmarks
Coding
Agentic & tool use
Reasoning & science
Robustness
Source: BenchLM, retrieved 31 August 2026. Every other score here is the figure the lab published at launch.
About
Kimi K2.6, released April 21, 2026, was Moonshot AI's trillion-parameter open-weight flagship of spring 2026, scoring 90.5% on GPQA Diamond and 80.2% on SWE-Bench Verified — numbers that matched or beat several proprietary frontier models of the same season — along with 89.6% on LiveCodeBench and a WebDev Arena Elo of 1513.
The jump over January's K2.5 was substantial (up nearly three points on GPQA and 3.4 on SWE-Bench Verified in twelve weeks), keeping Moonshot in the small group of labs shipping frontier-class open weights. The coding-specialised Kimi K2.7 Code followed in June 2026, and the K2 era closed when the 2.8-trillion-parameter Kimi K3 arrived that July.
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Frequently asked questions
Kimi K2.6 was released by Moonshot AI on Tuesday, Apr 21 2026.