OpenAI
GPT-5.6 Sol is the flagship model in OpenAI's GPT-5.6 series. It is suited for complex reasoning, coding, and agentic workflows, and is particularly strong at command-line and multi-step coding tasks...
Introducing GPT-5Rank #24 across 566
Rank #28 across 222
Rank #354 across 371
Percentile score by analysis domain.
* Cost is inverted: lower input, output, and blended prices rank higher.
Higher bars mean stronger relative placement.
| Metric | Domain | Value | Rank |
|---|---|---|---|
| Artificial Analysis Intelligence Index | overall | 49.4 | #24 |
| Artificial Analysis Coding Index | coding | 69.7 | #28 |
| GPQA | reasoning | 89.8% | #32 |
| Humanity's Last Exam | reasoning | 36.6% | #29 |
| SciCode |
| coding, reasoning |
| 55.4% |
| #12 |
| Output Speed | speed | 57.1 tok/s | #237 |
| Time to First Token | speed | 3.53s | #242 |
| Blended Price | cost | $11.25/M | #354 |
| Input Price | cost | $5.00/M | #345 |
| Output Price | cost | $30.00/M | #354 |
| Value Index | cost, overall | 4.4 | #319 |