Chat-tuned GPT-5.1 for polished assistants, writing, and product conversations
Specification
openai listing
Context
128K
Max output
16K
Released
2025-11-13
Knowledge cutoff
2024-09-30
Retires
2026-07-23
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · openai list price
Input
$1.25
Output
$10.00
Cache read
$0.125
Batch and priority prices
US dollars per million tokens · per listing
| Price | Listing | $/M |
|---|---|---|
| Priority input | azure | $2.50 |
| Priority output | azure | $20.00 |
Available from 8 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| openaivendor | $1.25 | $10.00 | $0.125 | — | 128K | 16K | 2026-07-23 |
| 302ai | $1.25 | $10.00 | — | — | 128K | 16K | — |
| abacus | $1.25 | $10.00 | — | — | 400K | 128K | — |
| helicone | $1.25 | $10.00 | $0.125 | — | 128K | 16K | — |
| merge-gateway | $1.25 | $10.00 | $0.125 | — | 128K | 16K | — |
| orcarouter | $1.25 | $10.00 | $0.125 | — | 128K | 16K | — |
| zenmux | $1.25 | $10.00 | $0.12 | — | 128K | 64K | — |
| azure | $1.38 $1.25 | $11.00 $10.00 | $0.14 $0.125 | — | 128K | 128K 16K | 2026-06-29 |
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