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 | MiniMax: MiniMax M2.7 | OpenAI: GPT-5.5 |
|---|---|---|
| Intelligence Index | 49.6 | 56.7✓ |
| Coding Index | 41.9 | 56.2✓ |
| GPQA Diamond | 87% | 93%✓ |
| Design Arena Elo | 1287 | 1355✓ |
| Speed (tokens/sec) | 249✓ | 44 |
| Latency | 457ms✓ | 3.2s |
| Input price /M | $0.250✓ | $5.00 |
| Output price /M | $1.00✓ | $30.00 |
| Context window | 205K | 1.1M✓ |
| Capabilities | ReasoningToolsJSON | ReasoningToolsJSONVision |