gpt-oss-120b vs GLM-4-Plus
OpenAI gpt-oss-120b | Z.ai GLM-4-Plus | |
|---|---|---|
| Overview | ||
| Company | OpenAI | Z.ai |
| Release date | Aug 5 2025 | Aug 29 2024 |
| Access | Open Weight | Proprietary |
| 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 | GLM-4-Plus shipped 341 days before gpt-oss-120b | |
Which is better: gpt-oss-120b or GLM-4-Plus?
gpt-oss-120b and GLM-4-Plus don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4-Plus shipped 341 days before gpt-oss-120b, so benchmark comparisons should account for the intervening progress.
gpt-oss-120b is open weight, while GLM-4-Plus is proprietary.
Direct benchmark comparisons are unavailable — gpt-oss-120b and GLM-4-Plus 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-Plus was released by Z.ai on Aug 29 2024.
gpt-oss-120b is an open weight model released by OpenAI. GLM-4-Plus is a proprietary model released by Z.ai.
Other comparisons
gpt-oss-120b vs Claude Fable 5GLM-4-Plus vs Claude Fable 5gpt-oss-120b vs Gemini OmniGLM-4-Plus vs Gemini Omnigpt-oss-120b vs Muse SparkGLM-4-Plus vs Muse Sparkgpt-oss-120b vs Grok 4.3 BetaGLM-4-Plus vs Grok 4.3 Betagpt-oss-120b vs DeepSeek-V4-ProGLM-4-Plus vs DeepSeek-V4-Progpt-oss-120b vs Mistral Medium 3.5GLM-4-Plus vs Mistral Medium 3.5