Alphabet faces securities class actions over alleged Gemini 3.5 Pro AI launch delays

Multiple law firms have filed securities fraud class action lawsuits against Alphabet Inc. and senior executives in federal court, alleging misrepresentations regarding its flagship Gemini 3.5 Pro artificial intelligence model. According to legal filings, CEO Sundar Pichai announced on May 19, 2026, that Gemini 3.5 Pro would launch in June 2026, but the company allegedly concealed disappointing training results and major setbacks. Following a July 16, 2026 media report revealing the model was months behind schedule, Alphabet's Class A and Class C shares dropped 4.4%. Affected shareholders face lead plaintiff deadlines of November 30 or December 1, 2026.