Moonshot AI Kimi-Dev vs OpenAI o1-preview — side-by-side specs.
Moonshot AI Kimi-Dev | OpenAI o1-preview | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jun 2025 | Sep 12 2024 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | 72B | — |
Context window | — | — |
| Benchmarks | ||
| Timeline | ||
| Release gap | o1-preview shipped 262 days before Kimi-Dev | |
Kimi-Dev and o1-preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-preview shipped 262 days before Kimi-Dev, so benchmark comparisons should account for the intervening progress.
Kimi-Dev is an open-source / open-weight model; o1-preview is proprietary.
Direct benchmark comparisons are unavailable — Kimi-Dev and o1-preview don't publish scores on any of the same benchmarks.