GPT-6 Sol vs GPT-5.6 Sol
GPT-6 Sol is cheaper: 2x less on input and 2x less on output.
Side by Side
| GPT-6 Sol | GPT-5.6 Sol | |
|---|---|---|
| Input /1M | $2.0 | $4.0 |
| Output /1M | $10.0 | $20.0 |
| Cache /1M | $0.2 | $0.4 |
| Batch in/out | $1.0/$5.0 | $2.0/$10.0 |
| Context | — | — |
| Tiers | long ctx: $4 in / $15 out | promo ends Nov 21, 2026 |
Workload Cost Calculator
GPT-6 Sol:
GPT-5.6 Sol:
Difference:
Frequently Asked Questions
Is GPT-6 Sol more expensive than GPT-5.6 Sol?
No — both list at $2/$10 per 1M tokens. GPT-6 is the newer generation at the same price.
Which should I use, GPT-6 or 5.6?
At identical rates, the newer GPT-6 is the default choice unless 5.6 benchmarks better for your workload.