If you use ChatGPT, Gemini or Claude for deep research and your question is answered by published studies, this ChatGPT deep research alternative is built for that case. AI for Research searches 250M+ scholarly works, filters by study type and year, labels how each study bears on your question and opens the report in an editor with live citations.
What the general assistants' deep research modes are best at
All three general assistants now run multi-step research and write long reports with citations. Each does something well.
- ChatGPT deep research plans searches, reads sources and writes a structured report; OpenAI says a run takes 5 to 30 minutes [1]. You can restrict research to websites you list or prioritize them, connect apps with read-only access, and download the report as Markdown, Word or PDF [2]. Its pricing page lists deep research on every plan, "limited" on Free and Go, "expanded" on Plus and "maximum" on Pro [3].
- Gemini deep research shows a research plan you can edit before it runs and can browse hundreds of websites in a session [4]. It is free for signed-in users aged 18 or over, takes about 5 to 10 minutes, can use your uploads, Drive, Gmail and NotebookLM, and exports to Google Docs [5]. Google AI Plus, Pro and Ultra raise the limits [6].
- Claude Research runs several searches that build on each other and can use connectors such as Gmail, Google Calendar and Google Docs, which helps when your notes and drafts live there [7]. It is on paid plans: Pro costs $17 a month billed annually or $20 monthly, Max starts at $100 [8].
For a background section that mixes papers with policy documents, statistics and news, these tools are often the better choice. Our guides on ChatGPT deep research for academic work and Gemini deep research for a literature search go deeper.
Where AI for Research differs
The general assistants rank web pages; AI for Research searches paper records first and treats the web as one optional source. That changes three things.
- What it reads. Sources are All papers, Medical (PubMed, Europe PMC), Preprints (arXiv, bioRxiv, medRxiv), Web and My Library. Open full texts are found through Unpaywall. Every result is a paper with authors, year, journal and DOI, not a landing page.
- How you narrow it. Filters for year, study type, journal quality tier, citations, open access and peer-reviewed only are applied before anything is read. Retracted papers are left out by default. With a web agent you can only ask in the prompt.
- How it cites. Citation markers that point to no real source are dropped. Each cited study gets a label for how it bears on your question, and a consensus line counts them ("2 of 4 studies that test the question support it"). The Cited, All read and Web tabs show what was used and what was read.
After the report, Save cited papers puts them in your Library, and Open in editor turns the report into a document whose citations stay live in any of 10,000+ styles.
Deep research tools compared
Checked on each vendor's own pages in November 2026. Limits change often; check the linked page before you subscribe.
| ChatGPT deep research | Gemini deep research | Claude Research | AI for Research | |
|---|---|---|---|---|
| Main sources | Open web; connected apps; listed sites [1][2] | Google Search; uploads, Drive, Gmail, NotebookLM [5] | Web; connectors [7] | Scholarly index (250M+ works), PubMed, Europe PMC, preprints; Web and Library optional |
| Narrow the search | Restrict to or prioritize listed sites [2] | Turn off Google Search to use only your sources [5] | Choose connectors [7] | Year, study type, journal tier, citations, open access, peer-reviewed only |
| Edit the plan first | Not stated | Yes [4] | Not stated | Detailed shows the plan to review first |
| Typical time | 5 to 30 minutes [1] | About 5 to 10 minutes [5] | Not stated [7] | Not stated here |
| Report export | Markdown, Word, PDF [2] | Google Docs, copy [5] | Not stated [7] | Editor; Word and PDF; LaTeX on paid plans |
| Reference export | Not described | Not described | Not described | Save to Library; RIS and CSV from Citation Map and reviews |
| Free access | "Limited" [3] | Yes, signed-in adults [5] | No [8] | 45 credits a month; Deep costs 15 |
| Paid access | Plus "expanded", Pro "maximum" [3] | AI Plus, Pro, Ultra: higher limits [6] | Pro $17/month annual or $20 monthly; Max from $100 [8] | Plus $12/month (750 credits); Pro $29/month (1,500) |
Which should you pick for which job?
| Your job | Better fit | Why |
|---|---|---|
| Background mixing papers, policy and data | ChatGPT deep research, restricted to chosen sites | Site control and Word export |
| Fast free orientation with an editable plan | Gemini deep research | Free for signed-in adults; plan you can edit |
| Research across your own Gmail and Docs | Claude Research | Connectors to your workspace |
| "Does X affect Y?" answered from studies | AI for Research | Scholarly sources, study labels, consensus line |
| Only trials or reviews from a set period | AI for Research | Filters before reading |
| A search you report in a methods section | None of the four alone | Use database builders with logged counts in a Systematic Review project, plus your library's databases |
How to use a general assistant and AI for Research together
- Orient with the assistant. Ask ChatGPT, Gemini or Claude for a broad report. Note the key terms, authors and the reviews it cites.
- Ask the focused question here. In the Ask box, choose Deep, pick sources (for example All papers and Medical), set study types and years, and start. The cost is shown before you run it.
- Compare. Open All read and check whether the reviews the assistant found appear. If one is missing, find it in Find Papers and save it.
- Keep the papers. Click Save cited papers. Open a key paper in Citation Map to see references and citing papers (0 credits).
- Write. Click Open in editor, draft with cited autocomplete, and run Citation check on the reference list before you submit (0 credits).
A worked example
Example (invented, for illustration). A PhD student asks a general assistant about retrieval practice for adult learners. The report is clear and cites 30 sources, but 11 are blogs and university teaching pages, and two well-known meta-analyses appear only through their abstracts. In AI for Research she asks, "Does retrieval practice improve long-term retention in adult learners?", with All papers, peer-reviewed only, and study types set to meta-analyses and randomized trials. The Deep report (15 credits) cites 24 papers, all peer-reviewed; the consensus line counts how many of the studies that test the question support it, and the Cited tab shows which are meta-analyses. She saves them and opens the report in the editor.
What AI for Research does not do
- It does not search Google Scholar, Scopus or Web of Science. Search those through your library.
- It reads abstracts when no open full text exists, just as web agents do for paywalled papers.
- It does not connect to Gmail, Drive or calendars. Your own material comes in as PDFs and documents in the Library, or Zotero and Mendeley import on paid plans.
- The consensus line is a count, not a weight of evidence.
- Detailed reports need a paid plan; the free plan allows 2 Deep reports a day.
What it costs
Free: 45 credits a month. Plus: $12 a month or $96 a year for 750 credits. Pro: $29 a month or $228 a year for 1,500 credits and High quality mode. Summary 1 credit, follow-up 1, Deep 15, Detailed 45. Search, filters, the Library and exports cost 0. See pricing.
Who it is for
PhD students and academics who need sources an examiner will accept, see AI tools for PhD students and AI for professors. Health researchers who want PubMed records and study-type filters, see AI for medical research; results still need a professional's review.
Learn more
- ChatGPT deep research for academic work
- Gemini deep research for a literature search
- What is deep research AI?
- The best AI for deep research
Also compare: Perplexity for research and Consensus AI alternative.
Sources
- OpenAI. Introducing deep research. https://openai.com/index/introducing-deep-research/ (checked November 2026)
- OpenAI Help Center. Deep research in ChatGPT (FAQ). https://help.openai.com/en/articles/10500283-deep-research-faq (checked November 2026)
- OpenAI. ChatGPT pricing. https://chatgpt.com/pricing (checked November 2026)
- Google. Gemini Deep Research overview. https://gemini.google/overview/deep-research/ (checked November 2026)
- Google. Use Deep Research in Gemini Apps. https://support.google.com/gemini/answer/15719111 (checked November 2026)
- Google. Gemini Apps usage limits. https://support.google.com/gemini/answer/16275805 (checked November 2026)
- Anthropic. Using Research on Claude. https://support.claude.com/en/articles/11088861-using-research-on-claude-ai (checked November 2026)
- Anthropic. Claude pricing. https://claude.com/pricing (checked November 2026)
Last updated 2026-11-12