Sources: Meta plans to begin training an LLM in Q1 2024 on its own infrastructure that it hopes will be roughly as capable as OpenAI's GPT-4 (Wall Street Journal)

Wall Street Journal:
Sources: Meta plans to begin training an LLM in Q1 2024 on its own infrastructure that it hopes will be roughly as capable as OpenAI's GPT-4  —  Parent of Facebook and Instagram wants artificial-intelligence system to be as capable as OpenAI's most advanced model  —  Platforms is setting its sights on OpenAI.