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AI Model DirectorySearch models, providers, and docs
A side-by-side comparison of OpenAI: GPT-5.4 Pro and GPT-5.5, using the lowest price and highest limits found across every provider that offers each model.
| OpenAI: GPT-5.4 Pro | GPT-5.5 | |
|---|---|---|
| Providers | 33 | 53 |
| Cheapest input ($/M) | $4.6472 via DaoXE | $0.75 via UnoRouter |
| Cheapest output ($/M) | $27.8829 via DaoXE | $4.5 via UnoRouter |
| Max context | 1.1M | 1.1M |
| Max output | 128K | 131.1K |
| Released | Mar 1, 2026 | Apr 22, 2026 |
| Open weights | No | No |
| Features | ReasoningToolsStructured outputFiles | ReasoningToolsStructured outputFiles |
| Input modalities | FileImageText | ImageText |
| Output modalities | Text | Text |