Compare two models
Select any two models. Input, output, cached, and context rarely move together — the cheaper model on one line isn't always the cheaper one on the next.
Description
OpenAI's premium reasoning model from the o-series, built for extended chain-of-thought processing on difficult problems with a 200k token context window.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$20.00/$80.00
$5.00/$30.00
Input /1M
$20.00
$5.00
Output /1M
$80.00
$30.00
Cached in /1M
—
$0.5
Context
200K
1M
Δ input since launch
—
—
Δ output since launch
—
—
Released
Jun 2025
Apr 2026
Status
—
—
Provider
OpenAI
OpenAI