While the term "DeepSearch" is an explicit feature mode in xAI's Grok, both OpenAI's ChatGPT and Google's Gemini offer comparable functionalities for in-depth, real-time information retrieval and synthesis from the web.

Grok (DeepSearch Mode): Leverages real-time data from X (Twitter) and the broader web. Aims to generate detailed reports by consulting dozens of sources using an agentic process. Praised for unique X insights and witty tone, but DeepSearch can be slower, and some find its analysis less deep or academically rigorous than competitors for certain tasks.
ChatGPT (Search/Browse Features): Uses Bing index and OpenAI crawlers. Doesn't have a single "DeepSearch" button but offers robust web search with recently improved citation capabilities (multiple sources, highlighting). Users sometimes refer to its more intensive research functions as 'Deep Research'. Often cited as a strong all-rounder, particularly good for customized, well-formatted research outputs and creative tasks, though complex research can take time.
Gemini (Google Search Integration): Directly integrates Google Search for fast, real-time information and AI Overviews. Excels at tasks within the Google ecosystem (Workspace, etc.). The user's source noted its strength in programming queries. While it can access vast information, some users find its synthesized output overly verbose, less tailored, or poorly formatted compared to others.

The choice often depends on specific needs: Grok for X-centric real-time info and casual interaction, ChatGPT for balanced capabilities and structured research, and Gemini for Google ecosystem integration and quick fact retrieval.

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🔎 Grok DeepSearch vs ChatGPT DeepSearch vs Gemini DeepSearch