AI startup Perplexity's valuation rose to $20 billion in fresh funding talks. It's a $2 billion jump from its last fundraise in July.

Perplexity tells TechCrunch the terms of the offer include a commitment to keep Chrome’s underlying engine, Chromium, open source and to invest $3 billion into it.

Perplexity made an unsolicited $34.5 billion bid for Google's web browser and claims it has the backing to pull it off.