Xiaomi: MiMo-V2.5-Pro wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-5.3-Codex | Xiaomi: MiMo-V2.5-Pro |
|---|---|---|
| Intelligence Index | 53.6 | 53.8✓ |
| Coding Index | 53.1✓ | 45.5 |
| GPQA Diamond | 92%✓ | 87% |
| Design Arena Elo | 1229 | 1334✓ |
| Speed (tokens/sec) | 53✓ | 38 |
| Latency | 3.7s | 219ms✓ |
| Input price /M | $1.75 | $0.435✓ |
| Output price /M | $14.00 | $0.870✓ |
| Context window | 400K | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSON |