ChatGPT’s free tier gets GPT 5.4 mini model with improved coding capabilities

Keyword: Subagents

Publisher: 9to5google.com

Published: Mar 17, 2026

OpenAI just announced its latest models, GPT 5.4 mini and nano, with the former now available to free ChatGPT users. Earlier this month, OpenAI launched its GPT 5.4 model in its higher tiers of use,… [+1666 chars]

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