Kimi-Dev vs o3-pro
Moonshot AI Kimi-Dev | OpenAI o3-pro | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jun 2025 | Jun 10 2025 |
| Access | Open Weight | Proprietary |
| Specifications | ||
Parameters | 72B | — |
| Timeline | ||
| Release gap | Kimi-Dev shipped 9 days before o3-pro | |
Which is better: Kimi-Dev or o3-pro?
Kimi-Dev and o3-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi-Dev shipped 9 days before o3-pro, so benchmark comparisons should account for the intervening progress.
Kimi-Dev is open weight, while o3-pro is proprietary.
Direct benchmark comparisons are unavailable — Kimi-Dev and o3-pro don't publish scores on any of the same benchmarks.
Frequently asked questions
Kimi-Dev was released by Moonshot AI on Jun 2025.
o3-pro was released by OpenAI on Jun 10 2025.
Kimi-Dev is an open weight model released by Moonshot AI. o3-pro is a proprietary model released by OpenAI.