Quick Answer
Perplexity and Grok offer the best real-time web access. ChatGPT and Gemini have browsing features too.
Detailed Answer
Perplexity was built for web search and provides cited, sourced answers from current web pages. Grok accesses real-time X (Twitter) data. ChatGPT has a browsing plugin for web access, and Gemini integrates with Google Search. Claude currently has no native web browsing, relying on its training data. For anything requiring current information, Perplexity is the standout choice.
Find Your Own Answer
The best way to decide is to try them yourself. Council lets you compare multiple AI responses to the same question.