X (formerly known as Twitter) is testing a free version of the platform’s native artificial intelligence (AI) chatbot Grok, several users posted. On Sunday, some users claimed to have received access to Grok despite not being a paid subscriber on X. There are some limitations to the free tier of the chatbot, as per the users, and its availability is said to be limit…X (formerly known as Twitter) is testing a free version of the platform’s native artificial intelligence (AI) chatbot Grok, several users posted. On Sunday, some users claimed to have received access to Grok despite not being a paid subscriber on X. There are some limitations to the free tier of the chatbot, as per the users, and its availability is said to be limit…