Glossary · term

AI browser / Agentic browser

A browser with a built-in AI agent that navigates, clicks, fills out forms, and reads content on the user's behalf. Perplexity Comet as the first mainstream product, OpenAI Atlas (October 2025) as the response. It opens a new class of security attacks (prompt injection via web pages). It heralds the end of the "OK Google" / "Hey Siri" era as the primary AI UI.

Products2025ExternalMaturity: 3/5

Maturity rationale

AI browser — Perplexity Comet + OpenAI Atlas, a product class in production

References

Perplexity Comet announcement (VII 2025)(blog)
OpenAI Atlas (X 2025)(blog)

Author: Perplexity

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