Kwaipilot: KAT-Coder-Pro V2 wins on more metrics (5 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | Kwaipilot: KAT-Coder-Pro V2 | OpenAI: GPT-5.1-Codex |
|---|---|---|
| Intelligence Index | 43.8✓ | 43.1 |
| Coding Index | 45.6✓ | 36.6 |
| GPQA Diamond | 86% | 86%✓ |
| Design Arena Elo | — | 1218✓ |
| Speed (tokens/sec) | 46✓ | 39 |
| Latency | 2.4s | 2.4s✓ |
| Input price /M | $0.300✓ | $1.25 |
| Output price /M | $1.20✓ | $10.00 |
| Context window | 256K | 400K✓ |
| Capabilities | ToolsJSON | ReasoningToolsJSONVision |