India, Nov. 5 -- Perplexity AI Inc. has pushed back against attempts by Amazon.com Inc. to block AI shopping via its Comet AI browser, in what it says is the US retail giant's first legal salvo against an AI company.

The AI company, founded and led by the India-born Aravind Srinivas, has received an "aggresive" legal threat from Amazon, demanding Perplexity AI to prohibit its Comet users from using their AI assistants on its online shopping platform, according to a blogpost titled 'Bullying in Not Innovation' shared by the CEO on X, formerly Twitter.

"We would be happy to work together with Amazon to figure out a win-win outcome for both us and them," Srinivasan wrote on X. "But attempts to block our Comet Assistant on Amazon and hurt o...