o3-pro vs GLM-4
OpenAI o3-pro | Z.ai GLM-4 | |
|---|---|---|
| Overview | ||
| Company | OpenAI | Z.ai |
| Release date | Jun 10 2025 | Jan 16 2024 |
| Access | Proprietary | Proprietary |
| Timeline | ||
| Release gap | GLM-4 shipped 511 days before o3-pro | |
Which is better: o3-pro or GLM-4?
o3-pro and GLM-4 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GLM-4 shipped 511 days before o3-pro, 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 — o3-pro and GLM-4 don't publish scores on any of the same benchmarks.
Frequently asked questions
o3-pro was released by OpenAI on Jun 10 2025.
GLM-4 was released by Z.ai on Jan 16 2024.