Due to poor performance reported by Google's parent company Alphabet, AI-related companies have seen their market value evaporate by $190 billion. Investors are cautious due to technology companies overpromising on AI and lacking clear paths to profitability, resulting in a hit to AI stock prices. Some analysts believe the market decline marks the beginning of AI's troubles, while others worry it signals an overinflated AI market. Microsoft persuaded investors with its commitments to AI services, yet its stock still fell, while Google's parent company fared worse with a 5.6% drop in share price.