AI Tools 
Consensus review
AI search engine for peer-reviewed research that gives cited, evidence-based answers.
⚡ Quick verdict
Consensus is one of the best tools for getting a quick, cited read on what research says about a question. The free plan is generous for paper search, Pro at $12 a month (billed annually) unlocks unlimited AI analysis, and the Deep plan suits heavy researchers. It is a research aid, not a substitute for reading the key papers yourself.
Key takeaways
- Free: unlimited paper searches, 10 Pro messages and 3 Deep reviews per month.
- Pro: $20 per month or $144 per year ($12 per month), with unlimited Pro messages and 15 Deep reviews.
- Deep: $65 per month or $540 per year ($45 per month), with 200 Deep reviews.
- Answers are grounded in peer-reviewed literature with citations.
- API and MCP calls are included on every plan (30 on Free, 500 on Pro, 2,000 on Deep).
At a glance
| Best for | Students, academics, clinicians, journalists and anyone who needs evidence from peer-reviewed research |
|---|---|
| Pricing from (USD) | $12/mo (Pro, $144 billed annually); $20 monthly |
| Free plan | Yes — unlimited paper searches, 10 Pro messages and 3 Deep reviews per month |
| Platforms | Web, API and MCP |
| Company | Consensus |
| Category | Research & Search |
| Last checked | October 16, 2026 |
On this page
What Consensus is
Consensus is a search engine for science. Instead of returning web pages, it searches peer-reviewed literature and uses AI to analyze what the papers say about your question, with links to every study it draws on. Ask “Does creatine improve cognitive performance?” and you get a synthesized, cited answer plus the papers behind it.
It’s built for people who need evidence, not opinions: students writing papers, academics scoping a topic, clinicians checking the literature and journalists verifying claims.
Key features
Paper search
Unlimited searches across research papers on every plan, with filters to narrow results.
Pro messages
Cited AI analysis of peer-reviewed research. Free includes 10 per month; Pro and above are unlimited.
Deep reviews
A deeper, multi-step synthesis across many studies, closer to a short literature review. Free gets 3 a month, Pro 15 and Deep 200.
Study Snapshots
Quick summaries of a paper’s key details, unlimited on Pro.
API and MCP
Developers can query Consensus via API or MCP: 30 calls on Free, 500 on Pro and 2,000 on Deep per month.
Pricing breakdown
From Consensus’s pricing page and help center, checked October 16, 2026.
| Plan | Monthly | Annual | Includes |
|---|---|---|---|
| Free | $0 | $0 | Unlimited paper searches, 10 Pro messages, 3 Deep reviews, 30 API/MCP calls |
| Pro | $20 | $144 ($12/mo) | Unlimited Pro messages, 15 Deep reviews, unlimited Study Snapshots, 500 API/MCP calls |
| Deep | $65 | $540 ($45/mo) | Everything in Pro, 200 Deep reviews, 2,000 API/MCP calls |
| Teams / University | Varies | Varies | Team management; 500 API/MCP calls per user |
Best use cases
- Student essays: find five strong studies on sleep and memory and see where they agree.
- Health claims: check whether research supports a supplement claim before writing about it.
- Literature scoping: run a Deep review to map a new research area quickly.
- Clinical questions: review evidence on a treatment’s outcomes before a case discussion.
How to get started
- Go to consensus.app and sign up free.
- Ask a clear research question, ideally yes/no or “what is the effect of X on Y.”
- Read the synthesized answer, then open the top cited papers.
- Use filters (such as study type or year) to focus on stronger evidence.
- Try a Deep review for broader topics.
- Upgrade to Pro if you need more than 10 AI analyses a month.
Tips and tricks
- Phrase questions like a researcher: population, intervention, outcome.
- Check study type and sample size before trusting a finding.
- Use Deep reviews for breadth and Pro messages for quick checks.
- Export citations into your reference manager as you go.
Example questions:
Does intermittent fasting improve insulin sensitivity in adults with type 2 diabetes compared with continuous calorie restriction?
What is the effect of classroom phone bans on student test scores?
Pros and cons
👍 Pros
- Focused on peer-reviewed research, not general web pages
- Every answer links to the underlying papers
- Generous free tier for searching
- Affordable annual Pro pricing
- API and MCP access for building tools
👎 Cons
- Free AI analysis is limited to 10 Pro messages a month
- Deep plan is pricey for casual users
- Coverage depends on what's indexed; some fields are thinner
- Summaries can oversimplify nuanced findings
Who should (and shouldn't) use Consensus
✅ A good fit if you…
- Need fast, cited evidence for an essay, article or clinical question
- Are starting a literature review
- Fact-check health or science claims
⛔ Look elsewhere if you…
- Need general web search (consider Perplexity)
- Want full systematic-review screening workflows (consider Elicit)
- Need non-academic sources like news or market data
Consensus alternatives
- Elicit — AI research assistant that searches, summarizes and extracts data from scientific papers, including systematic reviews. (from $11/user/mo (Plus, billed annually))
- Perplexity — AI answer engine with cited sources, Deep Research, the Comet browser and Perplexity Computer. (from $17/mo billed annually (Pro))
- Gemini Notebook — Google's AI research and thinking partner (formerly NotebookLM), grounded in your sources, with Audio and Video Overviews. (from Free; higher limits from $4.99/mo (Google AI Plus))
- ChatGPT — OpenAI's AI assistant for chat, research, writing, coding, images, voice and agentic work. (from $8/mo (Go); Plus $20; Pro $100–$500)
FAQ
Is Consensus free?
Yes. The free tier includes unlimited paper searches, 10 Pro messages and 3 Deep reviews per month, plus 30 API and MCP calls.
How much is Consensus Pro?
Pro costs $20 per month billed monthly, or $144 per year billed annually, which works out to $12 per month.
What is the Consensus Deep plan?
Deep costs $65 per month or $540 per year ($45 per month) and includes everything in Pro plus 200 Deep reviews per month, aimed at power users, researchers and clinicians.
What is a Deep review in Consensus?
A Deep review is a longer, multi-step synthesis across many papers on your question, closer to a mini literature review than a single answer.
Does Consensus have team or university plans?
Yes. Consensus offers a Teams plan and plans for universities; Teams includes 500 API and MCP calls per user per month.
Sources
This is an editorial review based on research of official Consensus pages and documentation, not hands-on benchmark testing. Prices are in USD and were checked on October 16, 2026; vendors change plans often, so confirm on the official pricing page before buying.