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GPT-5.5 (EU)

OpenAI · gpt-5-5-eu

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Default frontier GPT for coding, computer use, research, and knowledge work

Specification

most-agreed values

Context
1.1M
Max output
128K
Released
2026-04-23
Knowledge cutoff
2025-12-01
Retires
—
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$5.50
Output
$33.00
Cache read
$0.55

Available from 1 host

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
requesty$5.50$33.00$0.55—1.1M128K—

Price history

append-only observations · a listing writes a row only when its price moves

DateHostField$/M
2026-09-02requestyCache read$0.50
2026-10-02requestyCache read$0.55
2026-09-02requestyInput$5.00
2026-10-02requestyInput$5.50
2026-09-02requestyOutput$30.00
2026-10-02requestyOutput$33.00

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