Every case it cites is real, on point, and good law.
WarmLoop drafts your arguments and pressure-tests the other side's brief — then verifies every authority before you ever see it.
AI that invents case law is getting lawyers sanctioned — personally.
This isn't a cautionary hypothetical. In barely two years, courts in British Columbia, Alberta, Ontario, Saskatchewan, and the Federal Court have caught fabricated, AI-generated authorities in filings — and the consequences have climbed from a warning, to costs against the lawyer personally, to full-indemnity costs, to contempt proceedings. It's on the record, and it cuts both ways: your citations can be fabricated, and so can the other side's.
The consequences are real — and they land on the lawyer.
An appeal factum drafted with a large language model — nearly half the authorities did not exist. Lead counsel was ordered to pay $17,550 in costs, personally: "the lawyer whose name appears on the filed document bears ultimate responsibility."
Counsel filed four decisions that "simply do not exist." The Court ordered costs on a solicitor–client basis, payable by counsel personally.
A factum built on hallucinated cases; counsel was ordered to show cause on contempt. She escaped a finding only through full accountability — but was ordered into professional-development courses and could not bill the client for the tainted motion.
Opposing counsel caught the fabrications. Citing fake cases is "an abuse of process… tantamount to making a false statement to the court" — and the lawyer paid, personally, the costs of the wasted steps.
Counsel trusted an AI research tool and filed cases that didn't exist. Costs were awarded against counsel personally. Its Chief Justice has since warned the court "won't hesitate" to raise the amounts and move to contempt.
A litigant's brief cited cases that "do not exist or do not exist by the name." The successful party was denied costs anyway — "fabricating law is unacceptable," and the duty to ensure authorities are real rests with whoever files them.
And it isn't slowing down.
The duty is yours.
Read across every one of these decisions and the through-line is unmistakable: "the proverbial buck stops with counsel." As the Ontario Superior Court put it in Ko v Li, "counsel may not mis-state or misrepresent the law to the court whether by way of AI hallucinations or by any other means." Good faith, an apology, a contractor, a "trusted" tool — these have mitigated the sanction. Not one of them has erased it.
Every brief you sign, you certify. The obligation to verify that each authority exists — and says what you claim — rests with the lawyer, not the tool. That's the gap WarmLoop closes.
Two sides of the same litigation loop.
Point it at the other side's materials, or start from your own. Either way, the output is checked before it reaches you — and you stay the decision-maker.
Pressure-test the other side's brief
Upload the opposing application, factum, or evidence. WarmLoop reads it the way a sharp associate would — and reports back.
- Verifies every cited authority exists and is good law
- Flags cases that don't stand for the proposition claimed
- Surfaces unsupported assertions and gaps in the argument
- Drafts your response memo and reply, cited to source
Draft from your own record
Give WarmLoop your evidence, transcripts, pleadings, and notes. It builds the argument and the authorities to back it.
- Researches Canadian caselaw and legislation on point
- Drafts arguments, briefs, and memos in your voice
- Every citation is checked to exist and to be on point
- Quotes are pinned to the passage they come from
Nothing reaches you unverified.
Most legal AI generates first and hopes the citations are real. WarmLoop closes the loop — it checks every authority against the record before the draft is ever shown, and holds back anything it can't stand behind.
Retrieve
Every claim is grounded in a comprehensive, continuously updated corpus of publicly available Canadian judicial decisions and legislation.
Cite
The model drafts with authorities drawn from that corpus — not from memory, and never from a citation it cannot open.
Verify
Each citation is checked two ways: that the decision exists, and that it actually supports the proposition it is cited for.
Lawyer in the Loop
You get a draft with its sources attached and anything uncertain flagged — to approve, edit, or send. You stay in the loop.
Built for privileged work, hosted in Canada.
Solicitor-client privilege and Law Society confidentiality duties aren't features you bolt on afterward. They shape how WarmLoop is built.
Canadian-resident data
Client material is processed and stored in Canadian AWS regions (ca-central-1, Montreal) — not routed to the United States by default.
Privilege-aware by design
Confidentiality obligations and cross-border exposure under the U.S. CLOUD Act are treated as design constraints — the reason for a Canada-first architecture.
On-premises option
For the most sensitive files, WarmLoop can run inference on local, open-weight models on firm hardware.
Built for anyone who signs a brief.
Every litigator personally signs the briefs they file — and every one of them, from the solo practitioner to the largest firm, can be sanctioned for an authority that doesn't hold up. WarmLoop gives a firm of any size the same verification discipline — and brings it, for the first time, to the solo and small firms the enterprise suites have always priced out.
- Firms of every size — from the solo without an associate to the litigation team that wants a second set of eyes on every citation.
- Billable to the client — priced clearly per brief, WarmLoop can be passed on as a disbursement, the way firms already recover research and technology fees — so it needn't come out of the firm's margin.
- Flat-fee & unbundled practices — the efficiency to charge a fixed fee and still make the file worth taking.
- Access-to-justice & self-represented work — a path to a cited answer for people priced out of counsel, with lawyer review over time.
"I built WarmLoop for my own files first. It earns its place in my practice every day. That's the only standard that matters for work you put your name on."
Put a verifier in your corner.
WarmLoop is opening early access to its first design partners. If you litigate in Canada and want AI you can actually cite, let's talk.