Gemini 4 Argon
Claude Opus 5.5
Muse Wonder
MiMo-V2.6-Pro
Qwen3.8-Max
GLM-5.3
GPT-5.5
ERNIE 5.1
DeepSeek-V4.1-Flash-20260910
Grok 4.20 Beta
amazon-nova-experimental-chat
Dola Seed 2.0 Pro
NVIDIA-Nemotron-3-Ultra-550B-A55B
Gemma 4 31B
Step 5 Preview
Kimi K2 Thinking
Kimi K2 Thinking is an open-weight model from Moonshot AI, released Nov 6, 2025. Its best result is #28 of 92 on MedQA with 92.59%. It costs $0.60 per million input tokens and $2.50 per million output tokens, with a 256K-token context window.
- Developer
- Moonshot AI
- Released
- Nov 6, 2025
- Context window
- 256K
- Price in / out, per 1M tokens
- $0.60 / $2.50
- Weights
- Open
- Inputs
- Text
- Reasoning
- Yes
- Tool use
- Yes
- Hugging Face downloads, 30 days
- 47.7K
- Hugging Face likes
- 1.7K
Benchmarks
| Benchmark | Score bar | Accuracy | Rank | Cost / test |
|---|---|---|---|---|
| SWE-benchCoding | 60.20% | 75 / 85 | $0.37 | |
| LiveCodeBenchCoding | 63.15% | 103 / 143 | $0.6 / $2.5 | |
| MedQAMedicine | 92.59% | 28 / 92 | $0.6 / $2.5 | |
| GPQA DiamondReasoning | 78.54% | 76 / 138 | $0.6 / $2.5 | |
| MMLU-ProReasoning | 81.07% | 86 / 138 | $0.6 / $2.5 | |
| AIMEReasoning | 85.42% | 36 / 96 | $0.6 / $2.5 |
Vals AI, as of Oct 24, 2026.
Compare Kimi K2 Thinking
Moonshot AI
The lab behind Kimi, known for long-context and agentic open-weight models. Founded 2023, based in Beijing. moonshot.ai
Questions
Who makes Kimi K2 Thinking?
Kimi K2 Thinking is made by Moonshot AI, founded 2023 and based in Beijing.
How much does Kimi K2 Thinking cost?
$0.60 per million input tokens and $2.50 per million output tokens, at its provider’s list price.
What is Kimi K2 Thinking’s context window?
256K tokens (262,144).
Is Kimi K2 Thinking open source?
Kimi K2 Thinking has open weights, downloadable from Hugging Face (moonshotai/Kimi-K2-Thinking).