Kimi-Dev vs gpt-oss-120b
Moonshot AI Kimi-Dev | OpenAI gpt-oss-120b | |
|---|---|---|
| Overview | ||
| Company | Moonshot AI | OpenAI |
| Release date | Jun 2025 | Aug 5 2025 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | 72B | — |
| Benchmarks | ||
Nonsense detection BullshitBench v2Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 11% |
| Timeline | ||
| Release gap | Kimi-Dev shipped 65 days before gpt-oss-120b | |
Which is better: Kimi-Dev or gpt-oss-120b?
Kimi-Dev and gpt-oss-120b don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Kimi-Dev shipped 65 days before gpt-oss-120b, so benchmark comparisons should account for the intervening progress.
Published specifications for these two models are limited — see each model page for the latest details.
Direct benchmark comparisons are unavailable — Kimi-Dev and gpt-oss-120b don't publish scores on any of the same benchmarks.
Frequently asked questions
Kimi-Dev was released by Moonshot AI on Jun 2025.
gpt-oss-120b was released by OpenAI on Aug 5 2025.
Other comparisons
Kimi-Dev vs Claude Sonnet 5gpt-oss-120b vs Claude Sonnet 5Kimi-Dev vs Gemini Omnigpt-oss-120b vs Gemini OmniKimi-Dev vs Muse Spark 1.1gpt-oss-120b vs Muse Spark 1.1Kimi-Dev vs Grok 4.5gpt-oss-120b vs Grok 4.5Kimi-Dev vs DeepSeek-V4-Progpt-oss-120b vs DeepSeek-V4-ProKimi-Dev vs Mistral Medium 3.5gpt-oss-120b vs Mistral Medium 3.5