ChatGPT Atlas

Perplexity's AI browser with a sidebar assistant that acts across your tabs.

An AI-native Chromium browser from Perplexity that puts a persistent assistant in the sidebar — it summarizes pages, compares products, and takes actions like drafting emails or managing tabs using the context of what you're browsing. Perplexity search is the default, with Deep Research and voice mode built in. Free on Windows, macOS, Android, and iOS; an optional $5/month Comet Plus tier unlocks premium publisher content.

An AI-native web browser with chat and skills built into the URL bar.

An AI-native desktop web browser from The Browser Company, the team behind Arc. Dia bakes a chat assistant and reusable 'skills' directly into the address bar, with awareness of your open tabs and browsing history, so you never need to copy context into a separate chatbot. It launched publicly on macOS in 2025. A free tier covers light AI use; a $20/month Pro plan removes the AI usage limits.

The default AI assistant. Chat, voice, vision, and a tool ecosystem.

OpenAI's consumer assistant — multimodal chat with voice, image input, web browsing, code, and custom GPTs. The product that put generative AI in everyone's hands.