KIMI K2
Open SourceMoonshot AI•Released on 2026-01-20
Moonshot AI's open-source flagship with top HLE and Live Codebench scores. HN users praise its agentic coding ability approaching Claude Haiku 4.5, making it the coding king among open-source models.
77
Overall Score
Voice of the community
sample 412“Kimi K2 absolutely feels like the first open model that can stand in for Claude on monster codebases.”
Core Specs
128K
Context Window
32K
Max Output
ReasoningOpen Sourcetext
Scenario Scores
Pros & Cons
Sentiment72% +18% ·10% −
Pros
- +Open source & free
- +Strong coding ability
- +Top HLE score
- +Good tool calling
Cons
- −Smaller ecosystem
- −Slightly weaker English
- −Incomplete documentation
Pricing
Input (per 1M tokens)$0.56
Output (per 1M tokens)$2.22
Free trial available
Updated on 2026-03-12
Get Started
1Visit the provider's website
2Create an account
3Start using the model
Benchmarks
sweBench71.3%
hle85%
liveCodebench82%