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 #9 across 566
Rank #6 across 222
Rank #357 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 | 53.6 | #9 |
| Artificial Analysis Coding Index | coding | 76.3 | #6 |
| GPQA | reasoning | 92.6% | #10 |
| Humanity's Last Exam | reasoning | 39.7% | #20 |
| SciCode |
| coding, reasoning |
| 56.5% |
| #6 |
| Output Speed | speed | 55.6 tok/s | #244 |
| Time to First Token | speed | 3.67s | #243 |
| Blended Price | cost | $11.25/M | #357 |
| Input Price | cost | $5.00/M | #348 |
| Output Price | cost | $30.00/M | #357 |
| Value Index | cost, overall | 4.8 | #313 |