xAI makes Grok 2.5 available to developers, offers Grok 4 free temporarily

Elon Musk’s xAI has made an older version of its chatbot platform, Grok 2.5 model, available on the open-source platform ‘Hugging Face’.

Announcing it on his X post, Musk wrote, “The @xAI Grok 2.5 model, which was our best model last year, is now open source.” He added that “Grok 3 will be made open source in about 6 months.”

Earlier, Musk’s X (formerly Twitter) had announced its AI platform, Grok 4, free to access for all users worldwide. Sharing it on X, the platform said, “Grok 4 is now free for all users worldwide!”.

Additionally, it also mentions a usage limit, which will allow users to prompt a limited number of queries in the latest Grok 4 version, and further requires a premium subscription. The platform wrote, “For a limited time, we are rolling out generous usage limits so you can explore Grok 4’s full potential.”

Users can access the ‘Auto’ mode for complex queries, and the platform itself chooses the best mode according to the question. Additionally, there is an ‘Expert’ mode, which claims to use more advanced algorithms to provide users with better responses. The platform wrote on X, “Simply use Auto mode, and Grok will route complex queries to Grok 4. Prefer control? Choose "Expert" anytime to always use Grok 4.”