Eve vs Supio: pricing, features and which to choose

Eve launched in October 2023 as generative AI software for plaintiff lawyers, with Jay Madheswaran as founder and CEO. The company targets plaintiff-side practices, particularly personal injury, employment, and mass-tort firms. Reported funding reached $103 million in a September 2025 Series B led by Spark Capital, following a $47 million Series A led by Andreessen Horowitz in January 2025. Bloomberg reported a valuation above $1 billion at that time. Eve is therefore a venture-backed legal software company with a focused customer segment. It is designed for firms whose work centers on plaintiff matters, rather than for general legal research or broad consumer legal assistance. Its current branding is EveOS, reflecting the company’s broader operating-software positioning.

EveOS brings intake, case and firm operations, document analysis, drafting, and agentic workflows into one hosted service. A typical workflow can start with lead intake, continue through structured matter information and document review, and produce drafts or analysis for attorney oversight. The product includes an AI Intake Specialist and Reasoning Mode for litigation-document analysis. Its operating model also treats usage as a commercial variable: enterprise terms can meter matters, leads, voice minutes, pages, and per-matter charges. That matters for firms assessing total cost, because activity volume may affect the bill even when the workflow remains inside one application. Eve describes the product as an AI operating layer organized around cases and firm operations.

Commercial opacity is Eve’s clearest limitation: firms cannot compare a public platform price, plan minimum, API quota, or named model before contacting sales. Eve also has no documented self-hosted or on-premises deployment. Supio is the closest plaintiff-focused comparison, with Case Subscription and Unlimited Firm Access structures that describe unlimited usage, users, and pages, while Eve meters several categories. EvenUp covers a wider plaintiff workflow and combines specialized tools with human review. Filevine’s LOIS offers broader case-management automation tied to a system of record. Those distinctions make Eve most suitable for plaintiff firms that want a focused AI operating layer and can evaluate a custom contract against matter volume, oversight requirements, and existing systems.

Supio is a Seattle legal AI company focused on personal injury and mass tort plaintiff firms. It emerged from stealth in August 2024 with a $25 million Series A, then announced a $60 million Series B on April 30, 2025, bringing reported total funding to $91 million. Sapphire Ventures led the Series B, with Mayfield and Thomson Reuters Ventures participating. Supio is built for firms processing substantial case records and portfolios, rather than for general legal question answering. Its named workflows include chronologies, demand letters, case ledgers, litigation drafting, intake, and agentic case operations. The company describes specialized, purpose-built AI models and human expert verification, but does not name the foundation model vendors behind the service.

Supio organizes case preparation around document intelligence and structured outputs. Case Economics, Case Signals, and the Drafting Suite address different stages of reviewing records and producing work product. Teams can create chronologies, demand letters, case ledgers, and litigation drafts. Supio Intake conducts intake around the clock, scores leads, and writes structured case data to a case-management system. Supio Agent, launched in May 2026, plans and executes finished work with attorney oversight at case, portfolio, and firm levels. Connectors support integrations and two-way CMS synchronization, while a Westlaw Advantage connection was announced in April 2026. The practical design is a shared operating layer for case preparation, lead handling, and drafting, rather than a single document-generation utility.

The main buying risk is opacity around commercial and technical details. Supio does not publish dollar prices, named model vendors, API limits, retention schedules, or self-hosted deployment options. EvenUp is the closest specialist comparison, covering plaintiff-injury intake, treatment, demands, negotiation, discovery, and trial, with MedChrons combining AI and professional or nurse review. Filevine’s LOIS is broader case-management software that acts on matters, deadlines, documents, and appointments inside its system of record. Litify combines Salesforce-based practice management with agentic workflows and a Supio-powered damages assistant. Supio should be picked by plaintiff firms wanting dedicated case intelligence, intake, drafting, and portfolio automation, provided a custom quote and contract answer their integration and governance requirements.