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Medium
Published
1 month agoMar 17, 2026
Signal
46

Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API. GPT-5.4 mini brings GPT-5.4-class capabilities to a faster, more efficient mo…

Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API. GPT-5.4 mini brings GPT-5.4-class capabilities to a faster, more efficient model for high-volume workloads, while GPT-5.4 nano is optimiz…

Official source entry

Released GPT-5.4 mini and GPT-5.4 nano to the Chat Completions and Responses API. GPT-5.4 mini brings GPT-5.4-class capabilities to a faster, more efficient mo…

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
  • ci-cd

Categories

modelapi