Xiaomi: MiMo-V2.5 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-5.1 | Xiaomi: MiMo-V2.5 |
|---|---|---|
| Intelligence Index | 47.7 | 49.0✓ |
| Coding Index | 44.7✓ | 42.1 |
| GPQA Diamond | 87%✓ | 85% |
| Design Arena Elo | 1249 | 1317✓ |
| Speed (tokens/sec) | 65✓ | 38 |
| Latency | 994ms✓ | 2.8s |
| Input price /M | $1.25 | $0.140✓ |
| Output price /M | $10.00 | $0.280✓ |
| Context window | 400K | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVisionAudio |