Jul 14, 2026 Perplexity Comet vs ChatGPT agent: Which to Pick in 2026? Perplexity Comet is an AI browser that acts on the tabs you already have open; ChatGPT agent sends a chat assistant off to do a task in its own sandbox. Here's which to pick in 2026. Perplexity-Comet ChatGPT-Agent AI-Agents
