GPT-5.6 Sol vs GPT-6 Sol
Harvey LAB-AA 1.1?
GPT-5.6 Sol—
GPT-6 Sol · max3.6
| Benchmark | GPT-5.6 Sol | GPT-6 Sol |
|---|---|---|
| Arena Text · creative writing | 1,469 · xhigh | 1,438 · max |
| EQ-Bench Longform Creative Writing 1.11 | 81.7 | 82.8 |
| EQ-Bench Creative Writing v3 | 1,971.6 | 2,124.7 |
| Lech Mazur Short-Story | 2.5 · xhigh | — |
| IFBench (instructions) | 69.6 | — |
| Harvey LAB-AA 1.1 | — | 3.6 · max |
Specs
| Spec | GPT-5.6 Sol | GPT-6 Sol |
|---|---|---|
| Input, per 1M | $4 | $2 |
| Output, per 1M | $20 | $10 |
| Cost per task? | $0.50 | $0.25 |
| Speed, tok/s | 85 | — |
| Context | 1.05M | 1.05M |
| Weights | Closed | Closed |
| Released | Jul 2026 | Sep 2026 |
| See images | ✓ | ✓ |
| Read PDFs | Partial | Partial |
| Hear audio | — | — |
| Watch video | — | — |
| Call tools | ✓ | ✓ |
| Force a tool call | Partial | Partial |
| Return strict JSON | ✓ | ✓ |
| Search the web | ? | ? |
| Run code | ? | ? |
| Use a computer | ? | ? |
What breaks when you switch
GPT-5.6 Sol → GPT-6 Sol
Nothing known.
GPT-6 Sol → GPT-5.6 Sol
Nothing known.