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
GPT-5.6 Luna Pro is OpenAI's lightweight model in the GPT-5.6 series, optimized for speed and efficiency and served in batch mode with pro-level reasoning.
OpenAI's frontier model for complex professional workloads. 1M token context, text + image input, native computer use.
I/O price /1M
$0.1/$0.6
$5.00/$30.00
Input /1M
$0.1
$5.00
Output /1M
$0.6
$30.00
Cached in /1M
$0.01
$0.5
Context
1.05M
1M
Δ input since launch
—
—
Δ output since launch
—
—
Released
Jul 2026
Apr 2026
Status
—
—
Provider
OpenAI
OpenAI