The artificial intelligence tool uses the fourth iteration of Meta’s Llama model, which Meta has touted as being more cost-efficient than competitors like ChatGPT and Gemini.

Meta is launching a standalone AI app powered by Llama 4, blending voice tech with social personalization from Facebook and Instagram for a smarter assistant.

Compared to the Discovery feed, the other major differences between the MEta AI app and the ChatGPT app come off as more subtle. Meta AI has a slicker voice feature, one that lets you interrupt it mid-sentence and talk over it but still be understood. ChatGPT's voice chat is more turn-based, though it will pause if you start talking again.