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AI Model DirectorySearch models, providers, and docs
A side-by-side comparison of GPT-5.4 and Step 5 Preview, using the lowest price and highest limits found across every provider that offers each model.
| GPT-5.4 | Step 5 Preview | |
|---|---|---|
| Providers | 55 | 32 |
| Cheapest input ($/M) | $0.376 via QiHang AI | $0 via KiosAPI |
| Cheapest output ($/M) | $2.2559 via QiHang AI | $0 via KiosAPI |
| Max context | 1.1M | 1M |
| Max output | 131.1K | 1M |
| Released | Feb 26, 2026 | Sep 15, 2026 |
| Open weights | No | Yes |
| Features | ReasoningToolsStructured outputFilesTemperature | ReasoningToolsStructured outputFilesTemperature |
| Input modalities | ImageText | ImageTextVideo |
| Output modalities | Text | Text |