GPT-5.5
openai-gpt-55
Default frontier GPT for coding, computer use, research, and knowledge work
Specification
most-agreed values
Context
1M
Max output
131K
Released
2026-04-23
Knowledge cutoff
2025-12-01
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · most-agreed
Input
$5.00
Output
$30.00
Cache read
$0.50
Available from 1 host
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| venice | $5.00 | $30.00 | $0.50 | — | 1M | 131K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | venice | Cache read | $0.625 |
| 2026-10-16 | venice | Cache read | $0.50 |
| 2026-09-02 | venice | Input | $6.25 |
| 2026-10-16 | venice | Input | $5.00 |
| 2026-09-02 | venice | Output | $37.50 |
| 2026-10-16 | venice | Output | $30.00 |
Other listings of this model
this page is one of them
The corpus files GPT-5.5 under several keys. This page is the openai-gpt-55 listing. The full record — every host, every price and every benchmark score — is on the main GPT-5.5 page.