Grok-2 and Grok-Mini, two AI models, perform exceptionally well in the LMSys chatbot leaderboard. Grok-2 has surpassed GPT-4o to take the second spot, tying with Gemini, thanks to the votes of over 6,000 users. Grok-2 excels in mathematical tasks and has achieved second place in several other tasks. Grok-2-Mini enters the rankings at fifth place, demonstrating impressive capabilities, and has achieved a speed increase, running twice as fast as before. This improvement is attributed to enhanced reasoning.