https://techcrunch.com/2024/03/18/why-elon-musks-ai-company-open-sourcing-grok-matters-and-why-it-doesnt/

Elon Musk’s xAI released its Grok large language model as “open source” over the weekend. The billionaire clearly hopes to set his company at odds with rival OpenAI, which despite its name is not particularly open. But does releasing the code for something like Grok actually contribute to the AI development community? Yes and no.

Grok is a chatbot trained by xAI to fill the same vaguely defined role as something like ChatGPT or Claude: you ask it, it answers. This LLM, however, was given a sassy tone and extra access to Twitter data as a way of differentiating it from the rest.