Moonshot AI Kimi-Dev vs OpenAI o1 — side-by-side specs.
Moonshot AI Kimi-Dev | OpenAI o1 | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jun 2025 | Dec 5 2024 |
| Model type | — | — |
| Open source | Yes | No |
| Specifications | ||
Parameters | 72B | — |
Context window | — | — |
| Benchmarks | ||
Science reasoning GPQA Diamond | — | — |
Software engineering SWE-Bench Verified | — | — |
Multimodal understanding MMMU | — | — |
| Timeline | ||
| Release gap | o1 shipped 178 days before Kimi-Dev | |
Kimi-Dev and o1 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. o1 shipped 178 days before Kimi-Dev, so benchmark comparisons should account for the intervening progress.
Kimi-Dev is an open-source / open-weight model; o1 is proprietary.
Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.