Elon Musk’s AI company xAI has released the full weights of its Grok 2 large language model on the Hugging Face platform, making roughly 500 GB of data publicly available under a Grok 2 Community License Agreement. The publication fulfils Musk’s earlier pledge to open-source discontinued versions of the conversational AI system and gives researchers and smaller firms direct access to the model’s architecture and training data. In a subsequent post, Musk said Grok 2.5—the company’s top-performing model last year—is also now open source and that Grok 3 will follow in “about six months.” Documentation on Hugging Face notes that running Grok 2 at full precision requires eight GPUs with at least 40 GB of memory each, underscoring the significant computing resources still needed despite the model’s public release. By opening its models, xAI joins a growing cohort of developers, including Meta and Mistral, that are betting on open-source distribution to spur outside innovation and compete with closed systems such as OpenAI’s GPT-4. The move may broaden adoption of xAI technology across academic and commercial projects while adding momentum to calls for greater transparency in advanced AI research.