OpenAI upgrades ChatGPT free tier with faster GPT-5.4 Mini, adds new ‘subagent’ capabilities
OpenAI has launched its new GPT-5.4 Mini and Nano models to its free users. Just weeks after launching the more powerful GPT-5.4 model, the AI startup’s new GPT-5.4 Mini model is positioned as a ‘smaller, cheaper’ alternative in cases where speed and cost matter the most.
What’s new with GPT-5.4 Mini and Nano?
