Modelpeers

GPT-5, GPT-5 mini, GPT-5 nano

6 models from OpenAI

Retiring

Takes effect Dec 11, 2026 · in 40 days

GPT-5 and o3 snapshots to shut down December 11

The August 2025 GPT-5, GPT-5 mini, GPT-5 nano, GPT-5 Pro, o3 and o3-pro snapshots will be removed on December 11, 2026, with GPT-5.6 Sol, Terra or Luna as replacements.

Who is affected:
Apps pinned to GPT-5 or o3 snapshots.
Action needed:
Migrate to the listed GPT-5.6 replacement before December 11, 2026.

Source

"On June 11, 2026, we notified developers using older GPT-5 and o3 model snapshots of their deprecation and removal from the API on December 11, 2026."

OpenAI API deprecations page

Published

Open the sourcedevelopers.openai.com

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