Kimi K2.5
by Moonshot AI
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About
Kimi K2.5, released by Moonshot AI in January 2026, is an updated Mixture-of-Experts large language model with 1 trillion total parameters and 32 billion active parameters. It builds on Kimi K2 with improved coding performance across multiple languages and an expanded context window. Kimi K2.5 targets agentic development workflows, polyglot code generation, and open-source deployments requiring large-scale MoE reasoning.
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Pricing Range
Input (per 1M)$1.50 -$1.50
Output (per 1M)$6.00 -$6.00
Providers1
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Timeline
ReleasedJan 1, 2026
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License & Family
License
MIT
Performance Overview
Performance metrics and category breakdown
Overall Performance
5 benchmarks
Average Score
49.1%
Best Score
76.8%
High Performers (80%+)
0Performance Metrics
Max Context Window
264.2KTop Categories
Agents
63.3%
Coding
52.6%
Reasoning
24.4%
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All Benchmark Results for Kimi K2.5
Complete list of benchmark scores with detailed information
| SWE Bench Verified | Coding | 76.80 | 76.8% | Unverified | |
| OSWorld | Agents | 63.30 | 63.3% | Unverified | |
| Terminal Bench 2.0 | Coding | 43.20 | 43.2% | Unverified | |
| SWE-rebench | Coding | 37.90 | 37.9% | Unverified | |
| Humanity's Last Exam | Reasoning | 24.37 | 24.4% | Unverified |