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GPT 5.4 Mini (Fast)

OpenAI · gpt-5-4-mini-fast

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Strong small GPT for coding subagents, quick tool use, and high-volume work

Specification

most-agreed values

Context
400K
Max output
128K
Released
2026-03-17
Knowledge cutoff
2025-08-31
Retires
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$1.50
Output
$9.00
Cache read
$0.15

Available from 1 host

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
vercel$1.50$9.00$0.15400K128K

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