Comparing product rankings by OpenAI, Anthropic, and Perplexity

The article introduces a tool, AI Product Rank, that compares product rankings generated by different AI models (OpenAI, Anthropic, and Perplexity). It highlights the increasing importance of understanding how AI models recommend products, especially given their web search capabilities. The article also points out the potentially unusual sources these models are using, suggesting that high-quality sources may be opting out of training data. The example of car brand rankings and the reference to Vercel signups driven by ChatGPT further illustrate the significance of this topic.