modelbenchmark.io

o3 (Fast)

OpenAI · o3-fast

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Deliberate o-series reasoner for hard math, coding, and multi-step analysis

Specification

most-agreed values

Context
200K
Max output
100K
Released
2025-04-16
Knowledge cutoff
2024-05
Retires
Open weights
no
Input
text, image, pdf
Output
text

Price

US dollars per million tokens · most-agreed

Input
$3.50
Output
$14.00
Cache read
$0.875

Available from 1 host

HostIn $/MOut $/MCache rdCache wrContextOutputRetires
vercel$3.50$14.00$0.875200K100K

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