
Consensus
Consensus is an AI workspace and academic search engine for scientific research, available on the web, Android, iOS, and as an extension.
What Consensus is
Consensus is an AI workspace and academic search engine for scientific research, available on the web, Android, iOS, and as an extension. It searches a database of over 220 million peer-reviewed papers that is updated weekly. Search filters include publication date, open access, citations, journal rank, study design, population, sample size, duration, publisher, field, and country. Research Agent plans multi-step searches, can use citation crawling and DOI lookup, and returns citation-backed answers grounded in peer-reviewed work. Consensus says each citation in AI summaries maps to an exact paper quote, with the section identified and PDF text highlighted when available. Medical Mode searches a curated selection of about 8 million papers and 50,000 clinical guidelines from the top 1,000 medical journals. Users can import Zotero libraries and export CSV or RIS files for reference managers including EndNote, Mendeley, and Zotero. Consensus is also available in ChatGPT, Claude, and Microsoft 365 Copilot. API and MCP calls share monthly plan allowances; paid plans can add calls for $0.05 each up to their plan limit. The Free Tier costs nothing and includes unlimited paper searches, limited Pro messages, 3 Deep reviews/month, 10 Study Snapshots/month, and 30 API & MCP calls/month.
Good
- Searches over 220 million peer-reviewed papers.
- Filters include study design and sample size.
- Citations link AI summaries to exact paper quotes.
- Supports Zotero import and CSV or RIS export.
Watch out
- Free Tier limits Pro messages and monthly reviews.
- API and MCP calls share plan allowances.
- Additional paid-plan calls cost $0.05 each.
Who it suits
Consensus is aimed at researchers, students, and clinicians. Team plans are available for research groups, labs, and academic departments.
Verdict
Consensus combines scholarly search, filtering, and citation-backed AI assistance, with a medical-focused search mode and reference-manager workflows. The free plan supports paper searches, though other tools have monthly limits.
Plans and prices
From Consensus's own pricing page, checked 15 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free Tier | Free | Unlimited Papers searches · 10 Pro messages/month · 3 Deep reviews/month · 10 Study Snapshots/month · 30 API & MCP calls/month |
| Pro | $20 a month | Unlimited Papers searches · Unlimited Pro messages · 15 Deep reviews/month · Unlimited Study Snapshots · 500 API & MCP calls/month · $20/month or $144/year billed annually ($12/month equivalent) |
| Deep | $65 a month | Unlimited Papers searches · Unlimited Pro messages · 200 Deep reviews/month · Unlimited Study Snapshots · 2,000 API & MCP calls/month · $65/month or $540/year billed annually ($45/month equivalent) |
| Enterprise | Priced on request | All Team features · Thousands of users · Volume discounts · Library integrations · Training · Development partner program · 500 API & MCP calls/user/month · Email for a custom quote |
| Teams | Priced on request | All Pro features · 50 Deep reviews/user/month · Up to 200 seats · Centralized billing · 500 API & MCP calls/user/month · Custom pricing |
The facts
Each one read from Consensus's own pages, with the date it was checked.
What it does
- Advanced filters
- Filters include publication date, open-access status, citations, journal rank, study design, human or animal population, sample size, duration, publisher, field, and country.checked 15 Oct 2026
- AI integrations
- Consensus is available in ChatGPT, Claude, and Microsoft 365 Copilot, and its API and MCP requests share a monthly usage pool.checked 29 Sep 2026
- API limit
- The API and MCP share monthly call allowances by plan, and paid plans can enable additional calls for $0.05 each up to their plan limit.checked 29 Sep 2026
- API limits
- API requests are rate-limited to one request per second, and API and MCP calls share the plan's monthly allowance.checked 15 Oct 2026
- API overage
- Paid plans can enable additional API or MCP usage at $0.05 per call after included credits, subject to plan maximums.checked 15 Oct 2026
- Chat integrations
- Consensus can be connected to ChatGPT, Claude, and Microsoft 365 Copilot.checked 15 Oct 2026
- Citation grounding
- Consensus says every citation in its AI summaries is mapped to an exact quote from the paper, with the source section shown and PDF text highlighted when available.checked 29 Sep 2026
- Consensus Meter
- For yes-or-no questions, the Consensus Meter classifies retrieved studies as supporting, opposing, or possibly supporting the claim.checked 15 Oct 2026
- Deep review
- Deep reviews break a question into subquestions, run up to 20 targeted searches, screen more than 1,000 papers, and usually analyze up to 50 papers, sometimes up to 100.checked 15 Oct 2026
- Document upload
- Users can upload PDFs and other research documents, then ask questions about their contents.checked 15 Oct 2026
- Funding status
- Crunchbase shows four funding rounds, including Seed, Series A, and Series B, but hides the total amounts.checked 15 Oct 2026
- Independent criticism
- CASRAI warns that the Consensus Meter counts retrieved papers without explicitly weighting study design, sample size, statistical power, or risk of bias.checked 15 Oct 2026
- Independent limitation
- CASRAI describes Consensus as a broad, continuously changing aggregator rather than a fixed, reproducible systematic-review database.checked 15 Oct 2026
- Integrations
- Consensus supports Zotero library import and exports CSV or RIS files compatible with reference managers including EndNote, Mendeley, and Zotero.checked 29 Sep 2026
- Library access integration
- The product advertises LibKey integration to connect users with institutional journal subscriptions.checked 15 Oct 2026
- License
- The public consensus-mcp repository is marked MIT licensed, while the hosted Consensus product is a commercial service.checked 15 Oct 2026
- Limit: mobile performance
- Google Play complaints repeatedly cite slow response times and difficulty opening thread or paper panels in the mobile app.checked 15 Oct 2026
- Limit: organization features
- Product Hunt review summaries mention user demand for better storage and retrieval of personal research.checked 15 Oct 2026
The company
- Company founders
- Crunchbase lists Eric Olson and Christian Salem as co-founders.checked 15 Oct 2026
- Company founding and size
- LinkedIn lists the company as founded in 2022 with 2–10 employees.checked 15 Oct 2026
- Company headquarters
- LinkedIn lists headquarters in San Francisco, California.checked 15 Oct 2026
- Company legal name
- Crunchbase lists the legal name as Consensus NLP inc.checked 15 Oct 2026
- Founded
- 2021checked 23 Sep 2026
- Headquarters
- San Francisco, California, United Stateschecked 23 Sep 2026
The full review of Consensus
Overview
Consensus is an academic search and AI research workspace for finding and interpreting scientific papers. It is best suited to students, researchers and clinicians who need to trace answers back to scholarly sources. Its combination of broad paper search, specialized medical coverage and reference-manager support makes it a focused research tool, though its AI features are capped on the free plan.
Founded in 2021 and headquartered in San Francisco, Consensus searches more than 220 million peer-reviewed papers, with the database updated weekly. Research groups, labs and academic departments can also choose team plans.
Key features
Search and medical coverage
Filters for date, open access, citations, journal rank, study design, population, sample size, duration, publisher, field and country help narrow a large body of literature to papers relevant to a particular question. That breadth is valuable for structured searches; readers who want general-purpose web answers may prefer a broader search tool.
Medical Mode searches a curated collection of about 8 million papers and 50,000 clinical guidelines from the top 1,000 medical journals. That makes it a better fit for medically focused literature discovery than an undifferentiated search across disciplines, while the mode's defined scope is not a substitute for searching the full database when a question crosses fields.
Research Agent and citations
Research Agent plans multi-step searches and can chain citation crawling and DOI lookup before returning citation-backed answers grounded in peer-reviewed research. Consensus says each citation in its AI summaries maps to an exact quote, identifies the source section and highlights PDF text when available. This traceability is a meaningful advantage when checking an answer against its paper, although the answer still benefits from review of the underlying work.
Reference and AI workflows
Users can import a Zotero library and export CSV or RIS files for reference managers including EndNote, Mendeley and Zotero. Consensus is also available within ChatGPT, Claude and Microsoft 365 Copilot. These connections suit researchers who already organize papers or work in those assistants; API and MCP usage draws from the same monthly allowance rather than a separate pool.
Consensus says content sent for AI processing is not used to train its own or third-party models, and account identifiers are not attached to that content. Support is available through in-product Support Chat and at [email protected].
Pricing
The Free Tier costs nothing. It includes unlimited Papers searches, limited Pro messages, 3 Deep reviews/month, 10 Study Snapshots/month and 30 API & MCP calls/month. It is a useful way to search papers without a search quota, but the restricted AI messages and small monthly research and API allowances constrain sustained use.
Pro costs $20 a month, or $144/year billed annually (equivalent to $12/month). It adds unlimited Pro messages, 15 Deep reviews/month, unlimited Study Snapshots and 250 API & MCP calls/month, alongside unlimited Papers searches. This is the more suitable individual plan for regular AI-assisted work that does not require a high volume of Deep reviews.
Deep costs $65 a month, or $540/year billed annually (equivalent to $45/month). It keeps unlimited searches, Pro messages and Study Snapshots, raises the allowance to 200 Deep reviews/month and provides 1,000 API & MCP calls/month. The higher tier is for intensive research workloads; occasional users may not need the much larger review and call allowances.
Teams has custom pricing depending on team size. It includes Pro features, 50 Deep reviews per user/month, discounts up to 200 seats, centralized billing and 250 API & MCP calls per team member/month. Enterprise requires a custom quote by email for organizations with over 200 users; it adds Team features, library integrations and product training, with 250 API & MCP calls per user/month. Paid plans can enable additional API or MCP calls for $0.05 each, up to their plan limit.
Platforms
Consensus is available on web, Android and iOS, with an extension and API access. Mobile apps suit reading or searching away from a desktop, while the extension and API support other research workflows.
Who it's for
Consensus is a strong fit for students and researchers who want peer-reviewed literature search with filters, citation-grounded AI answers and ways to move references into established managers. Clinicians may find Medical Mode's curated papers and guidelines especially relevant. Teams that need shared billing or centralized administration can consider its group plans. It is less compelling for readers who need only occasional AI help: the free tier limits those tools, while the paid tiers are organized around substantial review and API allowances.
Pros and cons
- Pros: Unlimited Papers searches on the free plan make the core literature search accessible without a search cap.
- Pros: Exact-quote citation mapping, source sections and PDF highlighting when available make AI summaries easier to verify.
- Pros: Medical Mode combines a curated paper collection with clinical guidelines for a focused medical search path.
- Pros: Zotero import, CSV and RIS exports, and integrations with three major AI assistants support existing research routines.
- Cons: Free users have limited Pro messages, only 3 Deep reviews/month and 10 Study Snapshots/month, so AI use is restricted even when search is unlimited.
- Cons: API and MCP calls share a monthly pool, which can force trade-offs between direct integrations and other connected use.
- Cons: Deep's $65 a month price is a substantial step up from Pro for users who need more than 15 but not close to 200 Deep reviews monthly.
Alternatives
For an AI research assistant or search engine directory, see AI Research Assistants and AI Search Engines.
Choose Elicit if unlimited search across more than 138 million papers, unlimited summaries and unlimited chat with papers on its Basic plan matter more than Consensus's combination of Medical Mode and weekly updated search across over 220 million peer-reviewed papers.
Scholarly is another freemium research option.
SciSpace offers extension, iOS and web access, with a free Basic plan limited to 100 monthly credits; consider it if those platforms and a monthly credit model suit your workflow.
Perplexity is a freemium option with Android, iOS, macOS, web and Windows access; its free plan has limited daily use, while Pro costs $20 a month.
GPT Researcher offers an open-source, self-hosted option with no GPT Researcher usage limits, though users pay underlying language-model and search-provider costs directly.
Kimi Deep Research has a free monthly allowance measured by token consumption rather than query count.
Gemini Notebook is a freemium web and mobile option; its free plan allows 50 sources, 500,000 words per source and 200 MB per uploaded file.
Scite offers free Connect access to MCP and use in ChatGPT, Claude and more, grounded in 300M+ papers, but that plan does not include Assistant or Search access.
Verdict
Choose Consensus if your work depends on finding peer-reviewed studies, checking AI answers against quoted passages and keeping references moving through research tools. Its free search and focused medical collection make it useful even before upgrading; the main reason to look elsewhere is that regular Deep reviews or higher API and MCP usage require a paid plan, and the larger allowances come at a substantial price.
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