GPT-5.4 Pro vs GPT-5.5 Pro
No benchmarks in this slice.
Specs
| Spec | GPT-5.4 Pro | GPT-5.5 Pro |
|---|---|---|
| Input, per 1M | $30 | $30 |
| Output, per 1M | $180 | $180 |
| Context | 1.05M | 1.05M |
| Weights | Closed | Closed |
| Released | Mar 2026 | Apr 2026 |
| See images | ✓ | ✓ |
| Read PDFs | Partial | Partial |
| Hear audio | — | — |
| Watch video | — | — |
| Call tools | ✓ | ✓ |
| Force a tool call | Partial | Partial |
| Return strict JSON | — | ✓ |
| Search the web | ? | ? |
| Run code | ? | ? |
| Use a computer | ? | ? |
What breaks when you switch
GPT-5.4 Pro → GPT-5.5 Pro
Nothing known.
GPT-5.5 Pro → GPT-5.4 Pro