AI search and deep research assistant

Grok DeepSearch in Best Research AI

Answer in brief

Grok is xAI's chatbot. Its DeepSearch mode runs multi-step web and X searches and returns an answer with links, with limits that vary by plan.

Best for

Real-time X posts and broad web lookups inside a chat app

Pricing

Third-party guides list SuperGrok at $30 a month, with a yearly option and a lower Lite tier in some reports. xAI's pricing page could not be loaded to confirm these figures, and DeepSearch limits are not published in the official pages reviewed. API web search is commonly reported at $5 per 1,000 calls, which is an estimate.

What it covers

Live web pages and X posts. The xAI model documentation names Web Search and X Search as server-side tools, but index details are not published.

Citations and verification

Answers link to the pages they use. A Tow Center test published in February 2025 found that Grok-3 returned 102 citations that led to 404 errors on news quotes.

API

xAI's API exposes Web Search and X Search as server-side tools for Grok models, billed on top of token costs. Tool list: https://docs.x.ai/docs/models. A per-call price from an official page was not confirmed.

Strengths and limitations

Strengths

Live X posts are a search source few general tools offer
Deep search is part of the consumer chat app
Server-side search tools available in the xAI API

Limitations

A 2025 Tow Center test found weak citation accuracy on news quotes
Plan limits change often and are not officially published
xAI's pricing and limits pages were not reachable for this review

Third-party ratings

Not found

Dated facts

Tow Center study published February 2025: Grok-3 named the correct source article 21% of the time
Third-party guides, checked 2026-11-08, list SuperGrok at $30 a month
RuntimeWire reports X Search billing moves to per-post and per-profile on 2026-09-21 (not verified against xAI)

Grok DeepSearch or Hyperresearch?

Choose Grok DeepSearch for real-time x posts and broad web lookups inside a chat app. For sourced research where every figure has to hold up, Hyperresearch is our editorial choice: it scored 77.7 on DRACO in our own run and checks each cited figure against its source.

Sources for this entry

Vendor descriptions are attributed to the vendor. Prices change; confirm with each vendor.

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Cite this entry

Best Research AI. “Grok DeepSearch in Best Research AI.” Hyperresearch reference, reviewed 8 November 2026.
https://bestresearchai.com/resources/grok-deepsearch/