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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OpenAI's general-purpose reasoning model with a 400k token context window, released in August 2025 and since superseded by GPT-5.5.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.625/$5.00
$5.00/$30.00
Input /1M
$0.625
$5.00
Output /1M
$5.00
$30.00
Cached in /1M
$0.0625
$0.5
Context
400K
1M
Δ input since launch
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Δ output since launch
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Released
Aug 2025
Apr 2026
Status
—
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Provider
OpenAI
OpenAI