Read research faster.
Verify every claim.
Locus reads papers alongside you and highlights the exact sentence behind every answer — so you decide what to trust, not the model. Then it helps you write with those same sources in Word.
Flashcards
Click a card to see its source — or Ask to open its thread.
Ask a question, click a citation, land on the sentence.
Sentence-level
citations anchored in the real PDF
250M+
papers reachable via OpenAlex
8 styles
APA, MLA, Chicago, IEEE and more
The product
One place to read, organise and write
Everything below runs on the same idea: you should always be able to see where an answer came from.
Every answer points to the sentence it came from
Ask a question about the paper and Locus answers using only sentences from it — then highlights those exact sentences in the PDF, where they actually sit on the page.
- Not a page number, not a paraphrase — the sentence itself
- The model picks from real sentence IDs, so it cannot invent a citation
- If nothing in the paper supports an answer, Locus says so
Flashcards
Browser extensions
The paywall your university already paid
Locus fetches open-access papers by itself. The ones behind your library’s subscription are yours, not ours — so the extension runs where that access already lives, and saves the paper from the page you found it on.
- Downloads with your session, never ours
- Files it straight into the right project
- Reads the title and DOI off the page
- One paper at a time — the page you are looking at
Add to Locusyou@university.eduThe genetics of Caenorhabditis elegans
10.1093/genetics/77.1.71
Add to
Picked up from Senescence of Jellyfish, open in another tab.
Pricing
Simple plans, built for researchers
Start free. Upgrade when your library outgrows it.
Free
Read with receipts.
- 3 projects, 5 papers each
- Anchored Q&A — every answer cites the sentence
- 5 flashcards per paper
- Automatic tagging & taxonomy
- All 8 citation styles
Pro
The full reading-to-writing loop.
- 25 projects, 50 papers each
- Unlimited flashcards, incl. figure flashcards
- In-depth analysis on every paper
- Research web & paper map
- Locus for Word — cite as you write
Max
No ceilings, first in line.
- Unlimited projects and papers
- Everything in Pro
- Early access to new features
- Priority support
- Industry & team licensing available
Have a code?
Labs, courses and research groups we work with get codes that cover a plan in full. Create an account, then redeem it — no card needed.
Academic pricing shown. Labs, industry teams, and site licences: talk to us.
Locus
Stay in command of the AI
Locus accelerates the reading and keeps the judgement yours.