How we tested AI search tools

Here’s how we did it: Get concise answers to your questions. Try Ask The Post AI. The tools we tested were Microsoft Copilot, OpenAI’s ChatGPT 4 and 5, Claude Sonnet 4, Grok 3, Meta AI, Perplexity as well as Google’s AI Overviews and AI Mode. The controversial GPT-5 version of ChatGPT debuted whil...