The 'gpt-5.3-codex-spark' model is not supported when using Codex with a ChatGPT account

· Community Openai · Sept. 15, 2026, 2:23 p.m.
software development openai AI Models retirement announcement
Summary
The blog post announces the retirement of the GPT-5.3-Codex-Spark model, citing declining usage and better alternatives available. It reassures users that documentation will be updated accordingly.
Read full post on community.openai.com →
AUTHOR