The AI Chatbot Showdown of 2025: Grok vs DeepSeek vs Perplexity
Grok is Elon Musk’s xAI chatbot built on the Grok LLM family, with Grok-4 released in July 2025 and Grok-3 trained in a 200,000-GPU data center codenamed Colossus, plus built-in web search