ChatGPT vs Claude vs Gemini vs Perplexity: The Definitive AI Assistant Comparison

The Verdict

All four assistants are excellent, but they win in different lanes. ChatGPT is the best all-rounder with the richest feature set and ecosystem. Claude wins for coding, long documents and professional writing. Gemini is the obvious choice if you live in Google Workspace. Perplexity is unbeatable for research where every claim needs a citation. For most technical users, Claude edges ahead; for everyone else, start with ChatGPT's free tier.