Alt text: Futuristic 16:9 tech thumbnail showing a laptop with a dark “Deep Research Report” dashboard in the center, surrounded by glowing logos for Perplexity, ChatGPT, Google, Gemini, Claude, and Grok in a versus-style layout. Neon blue and purple light streaks frame the scene, with a bold black rounded banner across the bottom reading “THE BEST AI SEARCH TOOL?” in bright yellow and “WE TESTED 6” in large white text, plus a small “2026” badge in the top-right corner.

AI Search and Deep Research Tools Compared: Perplexity vs ChatGPT vs Gemini vs Claude vs Grok vs Google in 2026

Update — May 2, 2026: Read our new Grok 4.3 review. A single Perplexity Deep Research query now runs dozens of searches, reads hundreds of sources, and delivers a cited report in 2 to 4 minutes. On the heavier end, ChatGPT Deep Research can browse the web for up to 30 minutes and pull from […]