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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
GPT-5.6 Luna is OpenAI's lightweight model in the GPT-5.6 series, optimized for speed and efficiency across a wide range of tasks.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.2/$1.20
$5.00/$30.00
Input /1M
$0.2
$5.00
Output /1M
$1.20
$30.00
Cached in /1M
$0.02
$0.5
Context
1.05M
1M
Δ input since launch
decreased 80.0%
—
Δ output since launch
decreased 80.0%
—
Released
Jul 2026
Apr 2026
Status
—
—
Provider
OpenAI
OpenAI