In a recent experiment by TheDayAfterAI News, five AI chatbots — Perplexity, Gemini, Grok, ChatGPT, and Claude — were evaluated on their ability to forecast Broadcom Inc. (AVGO) stock movements for the week of December 16–22, 2025. The study assesses the models across five metrics, including trend direction, opening price, and weekly trading range. While Perplexity secured the highest overall score through consistent accuracy , Grok provided the most precise prediction for the weekly low. The report also highlights that while all models correctly identified the bullish trend, they universally overestimated the magnitude of the stock's recovery.