Meta launched its newest AI assistant powered by the model "Llama 3," which Zuckerberg called the most intelligent AI freely available. The assistant will be more prominently featured across Meta's apps, such as Instagram, Messenger, WhatsApp, and Reels. Meta is looking to compete with AI models like OpenAI's ChatGPT and unlock new forms of advertising through AI engagement. Zuckerberg said Meta's goal is to build the "world's leading AI," and it invested significantly in AI tools. Meta stock rose 1.5% on the day as the company eyes return from its AI investments through increased user engagement.