GPT-5.6 Luna changelog

Every change to GPT-5.6 Luna that Modelpeers has recorded, newest first, each with the source it came from. The record starts Jul 9, 2026.

All (4)Releases (2)Breaking changes (1)Prices/limits (1)

July 2026

GPT-5.6 Luna and GPT-5.6 Terra

2 models from OpenAI

Price changeJul 30, 2026

GPT-5.6 Luna 80% cheaper, Terra 20% cheaper

Starting July 30, GPT-5.6 Luna costs 80% less and GPT-5.6 Terra costs 20% less on the API.

Who is affected:: Apps using GPT-5.6 Luna or Terra.
What to do:: No action needed. Costs drop automatically.

1 incident is listed on the GPT-5.6 Luna page. Get this changelog in a feed reader with the RSS feed.