GPT-6.1 Sol vs MiMo V2.6 Pro
GPT-6.1 Sol is from OpenAI, released September 29, 2026. MiMo V2.6 Pro is from Xiaomi, released September 22, 2026.
- LMArena Elo1479 vs 1480. MiMo V2.6 Pro is 0.1% ahead on LMArena Elo.
- Input per 1M$2 vs $0.435. MiMo V2.6 Pro costs 78% less per million input tokens.
- Output per 1M$10 vs $0.87. MiMo V2.6 Pro costs 91% less per million output tokens.
- Context window1.05M vs 1M. GPT-6.1 Sol takes 5.0% more context in one request.
Prices are the vendors’ published API rates; Elo is LMArena’s text board. Each figure is dated on its model page.
Interactive Comparison
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$2 / $10 per million tokens | $0.435 / $0.87 per million tokens | |
|---|---|---|
| Identity | ||
| Developer | OpenAI | Xiaomi |
| Released | Sep 2026 | Sep 2026 |
| Status | GA | — |
| Licence | Proprietary | MIT |
| Self-hostable | No | Yes |
| Cost | ||
| Blended $/1M tokensinput × 0.75 + output × 0.25 | $4.000 / 1M tokens | $0.544 / 1M tokens |
| Input price | $2.000 / 1M tokens | $0.435 / 1M tokens |
| Output price | $10.000 / 1M tokens | $0.870 / 1M tokens |
| Cached input | $0.10 per 1M tokens | $0.0036 per 1M tokens |
| Batch discount | 50% (Batch and Flex) | — |
| Capacity | ||
| Context window | 1,050,000 tokens | 1M tokens |
| Max output | 128,000 tokens | — |
| Long-context surcharge | Over 272K input tokens: 2x input/cache rates and 1.5x output for the full request | — |
| Capability | ||
| Vision in | Yes | Yes |
| Audio in | No | Yes |
| Function calling | Yes | — |
| Structured output | Yes | — |
| Extended reasoning | Yes | — |
| Web search | Yes | — |
| Code execution | Yes | — |
| Access | ||
| API | Yes | Yes |
| Chat app | ChatGPT Work and Codex; not Chat at launch | — |
| Fine-tuning | No | — |
| Measured quality | ||
| LMArena Elo | 1479 (checked Oct 2026) | 1480 (checked Oct 2026) |
| LMArena rank | Rank 28 | Rank 27 |
| GPQA Diamond | 95 · max effort | — |
| Elo per dollarLMArena Elo ÷ blended $/1M tokens | 370 | 2722 |
