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A side-by-side comparison of OpenAI: GPT-5.3-Codex and GPT-6.1 Sol, using the lowest price and highest limits found across every provider that offers each model.
| OpenAI: GPT-5.3-Codex | GPT-6.1 Sol | |
|---|---|---|
| Providers | 41 | 54 |
| Cheapest input ($/M) | $0.1504 via QiHang AI | $0.1956 via NaraRouter |
| Cheapest output ($/M) | $1.2031 via QiHang AI | $0.8955 via NaraRouter |
| Max context | 512K | 1.1M |
| Max output | 128K | 128K |
| Released | Feb 5, 2026 | Sep 27, 2026 |
| Open weights | No | No |
| Features | ReasoningToolsStructured outputFiles | ReasoningToolsStructured outputFiles |
| Input modalities | ImageText | FileImageText |
| Output modalities | Text | Text |