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 #45 across 566
Rank #35 across 222
Rank #348 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 | 41.2 | #45 |
| Artificial Analysis Coding Index | coding | 65.1 | #35 |
| GPQA | reasoning | 79.0% | #153 |
| Humanity's Last Exam | reasoning | 15.8% | #133 |
| SciCode |
| coding, reasoning |
| 47.1% |
| #56 |
| Output Speed | speed | 45.3 tok/s | #281 |
| Time to First Token | speed | 1.41s | #199 |
| Blended Price | cost | $11.25/M | #348 |
| Input Price | cost | $5.00/M | #339 |
| Output Price | cost | $30.00/M | #348 |
| Value Index | cost, overall | 3.7 | #329 |