About Perplexity AI, Inc.
Perplexity AI, Inc. operates an AI-powered answer engine that searches the web, synthesizes information, and returns cited, conversational responses. Its core product is the Perplexity AI web and mobile app, along with Perplexity Pro and Enterprise tiers that provide higher usage limits, access to more capable models, team features, and additional tools for research and knowledge work. The company is headquartered in San Francisco, California, and serves both individual users and organizations globally.
A charge with a descriptor like “pro +15102700840 san francisco ca” is very likely associated with a Perplexity Pro or Enterprise subscription tied to the Perplexity AI phone/contact number +1 (510) 270-0840. These charges are typically recurring monthly or annual subscription fees, sometimes following a free trial period. Depending on the plan, common amounts can align with Perplexity’s Pro or Max subscription tiers or enterprise seat-based pricing. In some cases you may also see small temporary authorization holds when a card is first added or when Perplexity verifies a payment method.
If you’re unsure about this charge, start by signing into your Perplexity account (or the email address you commonly use for online subscriptions) and checking your billing or subscription settings for active Pro or Enterprise plans. Look for email receipts from Perplexity AI (often from addresses like pro@perplexity.ai or support@perplexity.ai) around the charge date. If you still can’t identify it, contact Perplexity support via the help/contact options on their website and provide the last four digits of your card, the billing date, and the exact amount (but never send your full card number by email). If the charge appears fraudulent and Perplexity cannot locate an account, you should also notify your card issuer to dispute the transaction and block future charges.