Contract review that finishes the job
Hand it the other side's draft. Corpus reads every page first, publishes an issue list, works it to the end, and tells you what it addressed and what it left for you.
Legal Intelligence that (deleted: replaces) empowers you.
The better Harvey alternative that drafts in your (deleted: chat window) document. Ask Corpus anything and get answers from a full legal research library.
Sharper drafts · A fraction of the cost
Everything the others do. Done better.
Agents that work while you don't
Hand off a matter and get on with your day. Corpus drafts, reviews and researches in the background, runs many matters at once, and comes back with work ready for review.
Learn moreAsk the law. Get the answer, with receipts.
The short answer first, the reasoning after, and a citation on every point.
- Every claim links to the exact section. Click it and you’re reading the source, not trusting a summary.
- It only cites what it actually found. No invented authorities, no plausible-sounding section numbers.
- Answers in the language you asked in. Quoted law stays exactly as enacted.
No more (deleted: copy, paste, reformat).
Just the finished document.
The deliverable, not a reply. You get the Word file you send, with numbering, defined terms and blanks for your deal details.
Every edit is tracked. Corpus never silently overwrites a clause. You review its work like a colleague’s.
Easy from the first matter. Drafting, review, research and versions in one place. Nothing to set up, nothing to learn.
Redline any two versions.
Import the other side’s markup, pick two versions, and see every difference as a proper redline. Try it below.
Projects/Project Atlas: sale process/Notice of Termination.docx
Select two versions to compare
Every version is kept. Every difference is visible. Nothing changes without a trail.
Built for privileged work.
Client confidentiality is the job. Corpus is built so you never have to choose between the best model and keeping a matter private.
How we protect your work- Your data never trains a model
- Not ours, not our providers'. Zero data retention with every model provider we use.
- Encrypted, everywhere
- Documents and data are encrypted at rest and in transit.
- Every firm walled off
- Your documents, library and matters are isolated from every other firm, and we test that with adversarial checks.
- Enterprise data-security standards
- Least-privilege access, audited operator actions, and hardened infrastructure throughout.
- SSO and roles
- Sign in with your identity provider. Owners, admins, billing and members each see what they should.
- Deploy where you need it
- On Enterprise, Corpus runs inside your own cloud or private environment.
Your law. Your precedents. One library.
Curated law libraries for your jurisdiction, plus your firm’s own precedents, searched together. Every citation lands on the exact clause.
Choose how much law each matter needs
Corpus must ground its work in the library. It cannot draft from memory, and the rule is enforced in the system, not just asked for in a prompt.
Librarysearched together
Curated librariesCurated
Maintained by Corpus for your jurisdiction
- Financial institutions
- Securities and exchange
- Data protection
- Civil and commercial code
Your firm's libraryFirm
Private to your firm, never shared
- Precedents: share purchase
- Precedents: NDAs
- Clause bank
- House style guide
Matter referencesMatter
The files on this matter
- NDA (Bidder).pdf
- Process Letter.pdf
- Indicative Offer.pdf
Everything you need. Nothing to learn.
Ask mode never touches the document
Questions are answered in the chat. Only Agent mode can edit, and only as tracked changes.
Reads scans properly
Scanned and badly encoded PDFs are detected page by page and re-read, so the text you search is the text on the page.
Templates and clause library
Start from your firm's precedents, not a blank page. Drop approved clauses in with one instruction.
Brief: the quick chat for every matter
Summarise the difference between two drafts or write a covering note, without a full drafting run.
Built for teams
Share matters with your team, keep roles and access tidy, sign in with SSO.
Faster is the least of it.
Corpus runs only on frontier models, fine-tuned for legal work. When a better model ships, you get it, so your work is always drafted by the best AI there is.
Powered by
Claude Opus 5.5
Anthropic’s most capable model
- Drafting and reviewClaude Opus 5.5
- Ask Corpus researchClaude Opus 5.5
- Brief, quick questionsClaude Sonnet 5.5
Undertakings
In every matter, Corpus shall:
- (a)read every page of a document before it reviews it, and say what it addressed and what it left for you;
- (b)never silently overwrite your text: every edit to an existing document lands as a tracked change;
- (c)cite only authority it actually retrieved, linked to the exact section;
- (d)keep your numbering, tables, defined terms and formatting intact; and
- (e)leave a clear blank wherever your deal needs a detail it does not have.
Corpus
For and on behalf of Corpus AI
Always working. Always in the document.
The only legal AI with every box checked.
General AI forces a trade-off. The smartest chat models leave you to copy answers into Word, and the private one gives you no choice of intelligence.
Legal AI is priced for the largest firms. Seat minimums, annual contracts, cloud-only, and law coverage that stops at a handful of jurisdictions.
| Tool | Frontier intelligence | Drafts in your document, as tracked changes | Built for legal work | Law library for your jurisdiction | Private deployment | Pay as you go, no seat minimum |
|---|---|---|---|---|---|---|
| Microsoft Copilot | ✗ | ~ | ✗ | ✗ | ✓ | ✗ |
| ChatGPT · Gemini | ✓ | ✗ | ✗ | ✗ | ✗ | ~ |
| Claude | ✓ | ✗ | ✗ | ✗ | ✗ | ~ |
| CoCounsel | ✓ | ~ | ✓ | ~ | ✗ | ✗ |
| Legora | ✓ | ✓ | ✓ | ~ | ✗ | ✗ |
| Harvey | ✓ | ~ | ✓ | ~ | ✗ | ✗ |
| Corpus | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
✓ full · ~ partial · ✗ not available. Based on public product information and stated policies, October 2026.
No seats. No lock-in. Top up and go.
Pay as you go
From $35
Buy credits, use them on drafting, review and research. Every action is itemised in credits, so you always see what a draft cost.
- $35 · 3,500 credits
- $150 · 15,000 credits
- $500 · 50,000 credits
Enterprise
Your infrastructure.
We deploy Corpus into your own cloud or private environment, build the features your practice needs, and onboard every team in person.
First drafts in (deleted: hours) minutes.
What used to take an afternoon now takes as long as it takes to ask. The hours go back to the client.
13:0014:0015:0016:0017:00
Without Corpus
Read the NDA · outline · first draft · format · proofread
With Corpus
Review
The rest of the afternoon, back with the client
Illustrative afternoon.
25+ hours
back every month, on average, for lawyers using legal AI.
Minutes
for a complete first draft, not an afternoon. Watch the run above.
Zero
copy-and-paste. The work lands in the document you send.
Say hello to your firm’s newest associate.
Corpus is invite-only, and onboarding is personal. We sit down with your team to get everyone set up, the same way you’d introduce a new hire around the office. We’re partnering with leading firms to bring Corpus into their practice, and we’d like yours to be next.
The Corpus mascot, off to work