OpenAI: GPT-5.5 vs Xiaomi: MiMo-V2.5
OpenAI: GPT-5.5 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-5.5 | Xiaomi: MiMo-V2.5 |
|---|---|---|
| Intelligence Index | 54.8✓ | 40.1 |
| Coding Index | 74.9✓ | — |
| GPQA Diamond | 94%✓ | 85% |
| Design Arena Elo | 1300 | 1303✓ |
| Speed (tokens/sec) | 51✓ | 48 |
| Latency | 2.0s | 709ms✓ |
| Input price /M | $5.00 | $0.105✓ |
| Output price /M | $30.00 | $0.280✓ |
| Context window | 1.1M✓ | 1.0M |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSONVisionAudio |