Alphabet's release of its Gemini 3.5 Pro model, announced in May, has been delayed, prompting some investors to sell off the stock. However, Gemini doubled its user base over the past year and now has 900 million monthly users. The company generated $1.2 billion in sales from Gemini last year, and Apple will reportedly pay Alphabet $1 billion annually to use Gemini as the underlying AI model for the new Siri AI. Alphabet is also investing in new AI processors.