Meta Platforms used public Facebook and Instagram posts to train its new Meta AI virtual assistant while excluding private posts shared only with close contacts to respect privacy, says the company's top policy executive, Nick Clegg. Private chats in messaging services were also not used as training data, and efforts were made to filter private details from public datasets. Tech companies like Meta, OpenAI, and Google have faced criticism for using internet-scraped data without permission to train their AI models, with concerns about handling private or copyrighted materials. The Meta AI product includes text, audio, and imagery generation and uses the Llama 2 language model and the Emu image generator. Safety restrictions prohibit generating photo-realistic images of public figures. Clegg anticipates litigation over whether AI-generated content infringes copyrights, while Meta's terms of service now bar users from generating such content.