Custom Legal Marketing has released its first public study on AI ranking and recommendation behavior, conducted through its Sequoia platform. The research submitted 3,200 identically worded questions to ChatGPT, Claude, and Google AI Mode, for a total of 9,600 queries, covering 100 of the largest cities in the United States and 32 legal practice areas. Researchers recorded 107,716 citations, finding that the three platforms recommended 19,692 distinct law firm websites. Only 2.9 percent of cited law firms were recommended by all three AI platforms. When two platforms answered the same prompt about the same city, the share of law firms appearing in both answers ranged from 2.8 percent to 8.6 percent. Claude and Google AI Mode returned no law firm in common in 70.6 percent of questions. When limited to the first law firm each platform named, all three selected the same firm in 0.9 percent of questions, or 24 out of more than 2,500. The report identifies differences in source material as a likely driver, noting that Avvo appeared in 87.1 percent of Claude’s answers but 5.4 percent of Google AI Mode’s, while Super Lawyers appeared in 62.8 percent of Google AI Mode’s answers and in none of Claude’s. Agreement varied by practice area, with corporate law producing the highest three-way agreement at 45.2 percent, while estate planning produced