Moonshot AI Kimi K2.7 Code | OpenAI GPT-5.1 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jun 12 2026 | Nov 12 2025 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | 1T | — |
Context window | 256k | — |
| Benchmarks | ||
Coding SWE-Bench VerifiedReal coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | — | 76.3% |
Science GPQA DiamondGraduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | — | 88.1% |
Multimodal MMMUTests the AI on understanding images and text together across many college subjects. Higher is better. | — | 76% |
| Timeline | ||
| Release gap | GPT-5.1 shipped 212 days before Kimi K2.7 Code | |
Kimi K2.7 Code and GPT-5.1 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5.1 shipped 212 days before Kimi K2.7 Code, so benchmark comparisons should account for the intervening progress.
Kimi K2.7 Code is an open-source / open-weight model; GPT-5.1 is proprietary.
Direct benchmark comparisons are unavailable — Kimi K2.7 Code and GPT-5.1 don't publish scores on any of the same benchmarks.