Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
Specification
most-agreed values
Context
128K
Max output
16K
Released
2025-11-13
Knowledge cutoff
2024-09-30
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · most-agreed
Input
$1.10
Output
$9.00
Cache read
$0.11
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| poe | $1.10 | $9.00 | $0.11 | — | 128K | 16K | — |
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