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NewEvidence checks and meta-analysis

Literature reviews you can check, line by line.

Ask a research question. Cognify searches the published literature, reads the papers and writes up what they found. Every claim links to its source, and every verdict is calculated from the evidence.

SearchesOpenAlexCrossrefarXivEurope PMC

Does creatine improve short-term memory in healthy adults?

  1. Plan searches6 queries, two aimed at refuting the claim
  2. Search OpenAlex, Crossref, arXiv, Europe PMC186 papers found
  3. Screen for relevance24 kept
  4. Weigh each paperStance, strength and deciding sentence

Leaning supported

62% confidence
9 support2 mixed3 contradict

Calculated from the evidence table, weighted by study strength.

  • SupportsRandomised trial · n = 45Strong
  • MixedCrossover study · n = 30Moderate
  • ContradictsRandomised trial · n = 120Moderate
Illustration with example data. Hover to pause.

Try it free

Ask your own PDF

Private

Drop a paper, report or contract. Answers cite the page they came from.

Free plan · 500 MB storage

  • Create a free account in about 20 seconds
  • Your files wait here and upload when you're back

Built on open scholarly data and proven infrastructure

How a run works

From a question to a verdict you can audit

Example run

0 found · 0 kept

“Does time-restricted eating improve insulin sensitivity?”

Leaning supported

0% confidence
SupportMixedContradict

Illustration with example data. Scroll to play it back.

Research

Four ways to ask the literature a question

Each one runs on real papers from OpenAlex, Crossref, arXiv and Europe PMC, with DOIs, abstracts and citation counts. A run keeps going if you close the tab, and every run is saved with its sources.

01

Literature review

“What does the research say about remote work and productivity?”

Plans the searches, screens every result for relevance, extracts what each included paper found and writes a review grouped by theme. It ends with where the papers disagree and where the evidence runs out.

02

Evidence check

“Does creatine improve short-term memory?”

Tests one claim. It searches for evidence on both sides on purpose, classifies each paper as supporting, contradicting or mixed, and calculates a verdict with a confidence score.

03

Quantitative synthesis

“How large is the effect of tutoring on maths scores?”

Pulls reported effect sizes into a comparison table and pools them with random effects. You get the pooled estimate, I² heterogeneity and a prediction interval, with each study's weight shown.

04

Research agent

“What is known about microplastics in drinking water?”

Searches, reads and judges its own coverage, then searches again to fill the gaps it found. When something can't be established from the papers, it says so.

Workspace

From a question to a draft, in one project

A research project keeps everything you learn in one place and links it together, so findings build up over months instead of disappearing into chat history.

  1. 01

    Question

    Each project starts with a research question and the hypotheses you want to test.

  2. 02

    Papers

    Save papers from a run or a search. Cognify extracts each paper's method, data, findings and limitations, and scores how reproducible it is.

  3. 03

    Claims and evidence

    Claims are pulled from papers with the sentence that states them. Write your own, and weigh every paper in the project for or against it.

  4. 04

    Gaps and experiments

    Find what the papers leave unsettled, each gap tied to the papers that imply it, and turn any gap into an experiment design you can edit.

  5. 05

    Manuscript

    Draft by section with citations to your papers. Cognify checks that each cited paper supports the sentence citing it, and flags claims with no source.

How it stays reliable

Built so you can check every answer

Calculated, not asserted

Evidence verdicts, pooled estimates and reproducibility scores are computed in code from the evidence table. The model explains the result; it doesn't decide it.

Quoted at the source

A claim is only kept if the model can quote the sentence that states it. Every finding links to its paper and passage.

Honest about failure

If an index is down or a step can't finish, the run says so. A rate limit never turns into a confident "no relevant papers found".

Your data stays yours

Row-level security in Postgres means each request can only reach rows you own or were invited to.

Your documents

Read your own PDFs the same way

Upload papers, reports or contracts and ask questions about them. Answers name the page they used, and clicking it opens the page. Search across your whole library by meaning, highlight as you read, and share files, tasks and meetings with your team.

Create a free account

500 MB of storage on the free plan.

Free tools

PDF and Word tools, no account needed

Seventeen everyday tools. Most run entirely in your browser, and the rest process your file in memory and discard it as soon as the download starts.

All tools

Frequently asked questions

Where do the papers come from?

OpenAlex, Crossref, arXiv and Europe PMC. Together they index well over 200 million scholarly works. Cognify reads titles and abstracts, and links you to the full text wherever it's open access.

Can it make up a citation?

Cognify only cites papers it actually retrieved from those indexes, each with a link you can follow. Claims must quote the passage that supports them, and the manuscript checker tests whether a cited paper really backs the sentence citing it.

How long does a run take?

Usually five to ten minutes, depending on the pipeline and how many papers it reads. You can close the tab; the run continues and is saved.

Is it a replacement for a systematic review?

No. It is a fast, transparent first pass that shows its sources and its limits. For a formal systematic review, use it to scope the literature and find gaps, then follow your field's protocol.

Who can see my projects and documents?

Only you, unless you share a teamspace. Every table is protected by Postgres row-level security, so a request can only return rows that belong to your account.

Can I cancel a subscription?

Yes, from Settings → Billing, at any time. You keep premium access until the end of the period you've paid for.

Start with one question.

Free to start, no card required. Your first literature review takes about ten minutes.