Frontier GPT-5.6 model for complex professional work, coding, and agentic workflows
Specification
most-agreed values
Context
1.1M
Max output
128K
Released
2026-07-09
Knowledge cutoff
2026-02-16
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$4.00
Output
$20.00
Cache read
$0.40
Cache write
$5.00
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| vercel | $4.00 | $20.00 | $0.40 | $5.00 | 1.1M | 128K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | vercel | Cache write | $2.50 |
| 2026-09-06 | vercel | Cache write | $5.00 |
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