GPT-5 vs o1-pro
OpenAI GPT-5 | OpenAI o1-pro | |
|---|---|---|
| Overview | ||
| Company | OpenAI | OpenAI |
| Release date | Aug 7 2025 | Mar 19 2025 |
| Access | Proprietary | 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. | 21% | — |
Community preference (code) Arena Elo (Code)Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | 1394 | — |
| Timeline | ||
| Release gap | o1-pro shipped 141 days before GPT-5 | |
Which is better: GPT-5 or o1-pro?
GPT-5 and o1-pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. o1-pro shipped 141 days before GPT-5, 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-5 and o1-pro don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5 was released by OpenAI on Aug 7 2025.
o1-pro was released by OpenAI on Mar 19 2025.