We compare OpenAI’s ChatGPT Deep Research and xAI’s Grok 3 DeepSearch, two cutting-edge AI research tools. From design to performance, cost, and accuracy, we analyze their strengths and limitations to help you decide which is better suited for your needs—be it in-depth analysis or real-time insights.

OpenAI’s deep research tool, launched for Pro users on Feb 2, 2025, is now available to ChatGPT Plus subscribers as of Feb 26. The AI feature compiles detailed reports, prompting debate on its impact.