GPT-4o vs o4-mini
OpenAI GPT-4o | OpenAI o4-mini | |
|---|---|---|
| Overview | ||
| Company | OpenAI | OpenAI |
| Release date | May 13 2024 | Apr 16 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. | 12%Best | 8% |
| Timeline | ||
| Release gap | GPT-4o shipped 338 days before o4-mini | |
Which is better: GPT-4o or o4-mini?
GPT-4o leads o4-mini on 1 of the 1 benchmark they both report (BullshitBench v2). GPT-4o shipped 338 days before o4-mini, 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.
On BullshitBench v2, GPT-4o leads at 12% vs o4-mini at 8%.
Frequently asked questions
GPT-4o was released by OpenAI on May 13 2024.
o4-mini was released by OpenAI on Apr 16 2025.