Original GPT-5 workhorse for reasoning, coding, writing, and tool workflows
Specification
most-agreed values
Context
400K
Max output
128K
Released
2025-08-07
Knowledge cutoff
2024-09-30
Retires
—
Open weights
no
Input
text, image, pdf
Output
text
Price
US dollars per million tokens · most-agreed
Input
$2.50
Output
$20.00
Cache read
$0.25
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| vercel | $2.50 | $20.00 | $0.25 | — | 400K | 128K | — |
More from OpenAI
most-hosted first