The Perplexity app in the Apple App Store on a smartphone arranged in Washington, June 1, 2025.Stefani Reynolds | Bloomberg | Getty ImagesA federal judge temporarily blocked startup Perplexity from accessing Amazon's site with its Comet artificial intelligence browser, according to court filings. Amazon sued Perplexity in November, alleging the startup took steps to "conceal" its AI agents so they could continue to scrape the online retailer's website without its approval. Perplexity called the ...