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A side-by-side comparison of gpt-oss-20b and Kimi K3.1 Pro, using the lowest price and highest limits found across every provider that offers each model.
| gpt-oss-20b | Kimi K3.1 Pro | |
|---|---|---|
| Providers | 49 | 46 |
| Cheapest input ($/M) | $0 via FastRouter | $0.36 via UnoRouter |
| Cheapest output ($/M) | $0 via FastRouter | $1.8 via UnoRouter |
| Max context | 131.1K | 1M |
| Max output | 131.1K | 1M |
| Released | Jul 18, 2025 | Oct 23, 2026 |
| Open weights | Yes | Yes |
| Features | ReasoningToolsStructured outputTemperature | ReasoningToolsStructured outputFiles |
| Input modalities | Text | ImageTextVideo |
| Output modalities | Text | Text |