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Legal Brief AI — Practice Hub

AI brief generation
that attorneys
can trust.

Carta AI's Brief Builder drafts motions, briefs, and legal memoranda with verified citations, jurisdiction-specific formatting, and arguments structured for persuasion. 6,000+ litigators rely on it.

70%

faster first drafts

100%

Cite-verified output

All

All brief types supported

50+

jurisdictions covered

Capabilities

Every tool a litigator needs to draft faster.

70% Faster First Drafts

Draft complete motions and briefs in minutes, not hours. AI generates well-structured legal arguments with proper reasoning, then you refine — not start from scratch.

Cite-Verified Case Law

Every citation is verified before it appears in your draft. Relevant precedents are automatically researched and included in Bluebook format, eliminating manual citation work.

All Brief Types

Motions to dismiss, summary judgment, appellate briefs, trial briefs, opposition briefs, reply briefs, legal memoranda, opinion letters — every format covered.

50+ Jurisdictions

Adapts automatically to federal, state, and appellate court formatting rules. Jurisdiction-specific requirements, local rules, and citation preferences applied to every draft.

Persuasive Argument Structure

AI structures arguments for maximum persuasive impact — IRAC format, logical progression, counterargument anticipation. Outputs attorneys can edit and file with confidence.

Integrated Legal Research

Brief Builder draws on Carta AI's full legal research capabilities. As you draft, the AI surfaces relevant statutes, regulations, and precedents in real time.

The Brief Builder is a game-changer. I drafted a 30-page summary judgment motion in 45 minutes that would have taken me 8 hours. The citations were accurate and the arguments were solid.

Amanda Foster, Esq. — Litigation Attorney, Atlanta

Get started

Draft winning briefs in a fraction of the time.

No credit card required. Free tier available. Setup takes under two minutes.