OpenAI is scheduled to shut down access to 13 older model snapshots, including several Codex variants, on July 23, 2026. Developers using these models, such as GPT-5.2 Codex, must migrate their production configurations and CI scripts to newer models like GPT-5.5. This transition requires more than a simple find-and-replace, as the replacement models have different performance, pricing, and potentially architectural characteristics, necessitating thorough testing and cost analysis. AI
IMPACT Developers must update their code and infrastructure to avoid service disruptions and potential cost changes due to OpenAI's model deprecation.
RANK_REASON This is a notice about the deprecation of older models and the need for users to update their integrations, rather than a new model release.
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