GPT-5 Pro vs GPT-5.4 nano
OpenAI GPT-5 Pro | OpenAI GPT-5.4 nano | |
|---|---|---|
| Overview | ||
| Company | OpenAI | OpenAI |
| Release date | Aug 7 2025 | Mar 17 2026 |
| 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. | — | 14% |
| Timeline | ||
| Release gap | GPT-5 Pro shipped 222 days before GPT-5.4 nano | |
Which is better: GPT-5 Pro or GPT-5.4 nano?
GPT-5 Pro and GPT-5.4 nano don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5 Pro shipped 222 days before GPT-5.4 nano, 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 Pro and GPT-5.4 nano don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5 Pro was released by OpenAI on Aug 7 2025.
GPT-5.4 nano was released by OpenAI on Mar 17 2026.
Other comparisons
GPT-5 Pro vs Claude Sonnet 5GPT-5.4 nano vs Claude Sonnet 5GPT-5 Pro vs Gemini 3.5 FlashGPT-5.4 nano vs Gemini 3.5 FlashGPT-5 Pro vs Muse Spark 1.1GPT-5.4 nano vs Muse Spark 1.1GPT-5 Pro vs Grok 4.5GPT-5.4 nano vs Grok 4.5GPT-5 Pro vs DeepSeek-V4-ProGPT-5.4 nano vs DeepSeek-V4-ProGPT-5 Pro vs Mistral Medium 3.5GPT-5.4 nano vs Mistral Medium 3.5