GPT-6 Sol Pro uses the same underlying model as GPT-6 Sol with Pro reasoning mode enabled for higher-quality responses on complex tasks.
Specification
most-agreed values
Context
1.1M
Max output
128K
Released
2026-09-22
Knowledge cutoff
—
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$2.00
Output
$10.00
Cache read
$0.20
Cache write
$2.50
Long-context price tiers
the rate above each context threshold
| Above | Price | $/M |
|---|---|---|
| 272K | Cache read | $0.40 |
| 272K | Cache write | $5.00 |
| 272K | Input | $4.00 |
| 272K | Output | $15.00 |
Available from 4 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| openrouter · batch | $1.00 | $5.00 | $0.10 | $1.25 | 1.1M | 128K | — |
| kilo | $2.00 | $10.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| nano-gpt | $2.00 | $10.00 | $0.20 | $2.50 | 1.1M | 128K | — |
| openrouter | $2.00 | $10.00 | $0.20 | $2.50 | 1.1M | 128K | — |
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