This page may contain stale information. Last updated: 2026-06-01
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Contradiction
This page records GPT-5.5 “release” on 2026-04-27, while 2026-04-24-openai-gpt-55-launch documents an earlier launch on 2026-04-24. See openai for consolidated timeline; reconcile with official OpenAI sources.
Overview
Follow-up release coverage of GPT-5.5 on April 27, 2026.