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A side-by-side comparison of gpt-oss-20b and Grok 4.5, using the lowest price and highest limits found across every provider that offers each model.
| gpt-oss-20b | Grok 4.5 | |
|---|---|---|
| Providers | 49 | 48 |
| Cheapest input ($/M) | $0 via FastRouter | $0.3098 via DaoXE |
| Cheapest output ($/M) | $0 via FastRouter | $0.9294 via DaoXE |
| Max context | 131.1K | 1M |
| Max output | 131.1K | 500K |
| Released | Jul 18, 2025 | Jun 29, 2026 |
| Open weights | Yes | No |
| Features | ReasoningToolsStructured outputTemperature | ReasoningToolsStructured outputFilesTemperature |
| Input modalities | Text | ImageText |
| Output modalities | Text | Text |