OpenAI: GPT-5.2 wins on more metrics (6 of 9), but the right pick depends on what you optimize for — see the breakdown below.
| Metric | inclusionAI: Ling-2.6-1T | OpenAI: GPT-5.2 |
|---|---|---|
| Intelligence Index | 33.6 | 46.6✓ |
| Coding Index | 33.1 | 44.2✓ |
| GPQA Diamond | 75% | 86%✓ |
| Design Arena Elo | — | 1264✓ |
| Speed (tokens/sec) | 57✓ | 47 |
| Latency | 1.5s | 1.3s✓ |
| Input price /M | $0.075✓ | $1.75 |
| Output price /M | $0.625✓ | $14.00 |
| Context window | 262K | 400K✓ |
| Capabilities | ToolsJSON | ReasoningToolsJSONVision |