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DocsOpenAI
Severity
Medium
Published
2 months agoFeb 24, 2026
Signal
46

Released gpt-5.3-codex to the Responses API. Read more here.

Official source entry

Released gpt-5.3-codex to the Responses API. Read more here.

From API Changelog. The simplified record can be checked against the original wording.

Why it matters

OpenAI updated api changelog semantics for llms and agents. Review the official entry during the next release review.

Who should care

  • backend
  • ai

Affected stack

  • llms
  • agents
  • developer-workflow

Categories

modelapi