Kimi K2.5vsKimi K2
Across 9 shared benchmarks, Kimi K2.5 leads overall: Kimi K2.5 wins 8, Kimi K2 wins 1, with 0 ties and an average score difference of +25.61.
Kimi K2.58 wins(89%)(11%)1 winKimi K2
Benchmark scores
Grouped by capability, sorted by largest gap within each. 9 shared benchmarks.
General Knowledge
Kimi K2.5 3/4| Benchmark | Kimi K2.5 | Kimi K2 | Diff |
|---|---|---|---|
| ARC-AGI | 65.3031 / 65Thinking (No Tools) | 13.3057 / 65 | +52 |
| HLE | 50.2020 / 157Thinking (With Tools) | 4.70154 / 157 | +45.50 |
| GPQA Diamond | 87.6034 / 178Thinking (No Tools) | 75.1093 / 178 | +12.50 |
| MMLU Pro | 78.5066 / 126Thinking (No Tools) | 81.1053 / 126 | -2.60 |
Math and Reasoning
Kimi K2.5 3/3| Benchmark | Kimi K2.5 | Kimi K2 | Diff |
|---|---|---|---|
| AIME2025 | 96.1021 / 106Thinking (No Tools) | 5485 / 106 | +42.10 |
| Simple Bench | 46.8013 / 27Thinking (No Tools) | 26.3024 / 27 | +20.50 |
| FrontierMath - Tier 4 | 4.2040 / 80Normal (No Tools) | 0.0171 / 80 | +4.19 |
Coding and Software Engineer
Kimi K2.5 2/2| Benchmark | Kimi K2.5 | Kimi K2 | Diff |
|---|---|---|---|
| LiveCodeBench | 8516 / 120Thinking (No Tools) | 53.7086 / 120 | +31.30 |
| SWE-bench Verified | 76.8027 / 108Thinking (With Tools) | 51.8088 / 108 | +25 |
Specs
| Field | Kimi K2.5 | Kimi K2 |
|---|---|---|
| Publisher | Moonshot AI | Moonshot AI |
| Release date | 2026-01-27 | 2025-07-11 |
| Model type | Multimodal model | Chat model |
| Architecture | MoE | MoE |
| Parameters | 1T | 1T |
| Context length | 256K | 131K |
| Max output | 16K | 131K |
Summary
- Kimi K2.5leads in:General Knowledge (3/4), Math and Reasoning (3/3), Coding and Software Engineer (2/2)
On average across the 9 shared benchmarks, Kimi K2.5 scores 25.61 higher.
Largest single-benchmark gap: ARC-AGI — Kimi K2.5 65.30 vs Kimi K2 13.30 (+52).
Page generated from structured model, pricing and benchmark records. No real-time LLM is used to write the prose.