Alex Getmanearly AI signals
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GPT-5.3

OpenAI

ReportedRelease date unknownUpdated

Timeline

  1. · Evidence links · OpenAI · Model release notes
  2. · Evidence links · OpenAI · ChatGPT release notes
Specifications

Radar · GPT-5.3 · Release date unknown

Questions

When was GPT-5.3 released?

Its release date is not established. Signal Forge first recorded it on 7 Oct 2026.