OpenAI's GPT-5.4 mini and nano launch - with near flagship performance at much lower cost

Keyword: Codex-subagents

Publisher: ZDNet

Published: Mar 17, 2026

Elyse Betters Picaro / ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways GPT-5.4 mini runs more than twice as fast as GPT-5 mini.New models aim at … [+8422 chars]

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