gpt-oss-120b vs GLM-4.5-Air
OpenAI gpt-oss-120b | Z.ai GLM-4.5-Air | |
|---|---|---|
| Overview | ||
| Company | OpenAI | Z.ai |
| Release date | Aug 5 2025 | Jul 28 2025 |
| Access | Open Weight | Open Weight |
| Specifications | ||
Parameters | — | 106B |
| 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% | — |
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. | — | 59.8% |
| Timeline | ||
| Release gap | GLM-4.5-Air shipped 8 days before gpt-oss-120b | |
Which is better: gpt-oss-120b or GLM-4.5-Air?
gpt-oss-120b and GLM-4.5-Air don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4.5-Air shipped 8 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 — gpt-oss-120b and GLM-4.5-Air don't publish scores on any of the same benchmarks.
Frequently asked questions
gpt-oss-120b was released by OpenAI on Aug 5 2025.
GLM-4.5-Air was released by Z.ai on Jul 28 2025.
Other comparisons
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