Eve vs Supio

The short version

Eve and Supio sell to the same plaintiff firms and say so: each runs a page comparing itself to the other. Both started with records and drafting and now sell agents that work across a firm's cases. The clearest differences are practice coverage, how each relates to your case management system, and where legal research comes from.

Two different bets

Eve launched EveOS in June 2026 and describes it as an operating layer for plaintiff firms. Its site lists agents that draft demands, discovery and motions and chase records; an auditor that reviews active matters each night; a voice intake agent; and an analyst for firm-level questions about revenue and settlement pace. Eve markets personal injury, labor and employment, medical malpractice, Social Security disability and workers' comp, and claims 1,200+ customers.

Supio launched Supio Agent and Supio Intake in May 2026. It says the agent plans and carries out work across a case, a caseload or the whole firm, with attorney oversight and approval, and that it reads from and writes back to your existing case management system with no migration. Supio markets plaintiff law with PI and mass torts named. Its customer base more than doubled in the first half of 2026, by its own report, though it gives no count.

In short, Eve leans toward being the system your team works in. Supio leans toward working inside the system you already have.

What each says about the other

Read both comparison pages with care, since each is marketing:

• Supio's page says Eve works stage by stage, cannot carry learning from one case to the next, and draws citations from a self-assembled library without licensed editorial treatment.
• Eve's page says Supio's tools are fragmented, its drafts generic, and its Q&A capped at about 250 pages, and claims Eve's output won 9 of 10 head-to-head complex cases without saying who judged them.

Neither page publishes a method you could check. Supio now says it has no page limits. The fair way to settle it is to run both on the same five closed files and have your own attorneys grade the chronologies and drafts.

Integrations and research

Supio's integrations page names Litify, SmartAdvocate, MyCase, CASEpeer, Smokeball, Jove and Neostella for case management, plus document systems such as Dropbox, OneDrive, SharePoint, Box and Google Drive. Supio also powers the AI behind LitifyAI Instant Demands. Eve has a Clio integration page; its other connections are not named on its home page, so ask.

For research, Supio connects to Westlaw Advantage through Thomson Reuters, which is also an investor. Eve lists legal research as a built-in module.

Litigation and pricing

Litigation

Eve is a defendant in two pending federal suits. EvenUp sued Eve in September 2025 alleging trade secret misappropriation (N.D. Cal., 4:25-cv-08199-YGR), and AI.Law sued Eve for patent infringement in June 2026. Both are allegations with no ruling on the merits. We cover the details on EvenUp vs Eve.

Pricing

Neither publishes a price. A competitor's page estimates Eve at roughly $100 to $500 per user per month; treat that as an estimate. Supio sells by quote. Ask both for a written quote on the same number of users and cases.

Which one fits which firm

Choose Eve if you handle employment or a mixed docket, want nightly case review across every matter, or run Clio.

Choose Supio if you are a PI or mass tort firm on Litify, SmartAdvocate, CASEpeer, MyCase or Smokeball and want the AI to write back to that system, or if Westlaw-backed research matters to you.

Where PlaintiffStack fits

PlaintiffStack is a third path: case management and AI in one system, priced at $250 per case with every app included. AI usage is billed separately, and each tool shows an estimated cost before it runs. It ships California PI, workers' comp and employment, with morning checks such as expiring demands, IMR deadlines after a UR denial, and civil filing deadlines after a right-to-sue notice. Agents propose; a person accepts. It reads searchable files only, with no OCR yet, so scans and faxes are not read.

See PlaintiffStack vs Eve, PlaintiffStack vs Supio and alternatives to Eve.