OpenAI: GPT-5.2-Codex vs Xiaomi: MiMo-V2.5-Pro
Xiaomi: MiMo-V2.5-Pro wins on more metrics (7 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | OpenAI: GPT-5.2-Codex | Xiaomi: MiMo-V2.5-Pro |
|---|---|---|
| Intelligence Index | 40.1 | 42.2✓ |
| Coding Index | — | 60.2✓ |
| GPQA Diamond | 90%✓ | 87% |
| Design Arena Elo | — | 1322✓ |
| Speed (tokens/sec) | 64✓ | 44 |
| Latency | 1.6s | 1.1s✓ |
| Input price /M | $1.75 | $0.435✓ |
| Output price /M | $14.00 | $0.870✓ |
| Context window | 400K | 1.0M✓ |
| Capabilities | ReasoningToolsJSONVision | ReasoningToolsJSON |