Eve vs Spellbook (2026)

Eve

by Butler Labs, Inc.

Spellbook

by Spellbook

Pros

• ✓Built only for plaintiff firms and covers the case end to end: intake calls and signing, medical chronologies, demand letters, discovery, research and trial preparation in one platform, across five plaintiff practice areas.
• ✓Works without being prompted: Agents act on case updates, the Auditor reviews every case each night for missed value, and the intake voice agent answers calls 24/7 and syncs to Clio Grow, Lead Docket and SmartAdvocate.
• ✓Evidence beyond its own site: 51 G2 reviews at 4.9 out of 5 and a customer verdict reported by Law360 Pulse, plus named customer firms and SOC 2 Type 2 and HIPAA compliance on its trust page.

Limitations

• –No published prices: a call is needed for a quote, and the terms describe a platform fee tiered by matter count plus metered voice minutes and leads, with overages billed monthly, so total cost depends on volume.
• –Plaintiff side only: defense firms, transactional practices and in-house legal teams are outside its scope, and orders renew automatically for one-year terms unless cancelled at least 30 days before the term ends.
• –Eve does not say whether it trains its own models on customer data: the privacy policy bars its third-party LLM providers from training, but the terms are silent on Eve itself, and its open APIs and custom MCPs have no public documentation.

Pros

• ✓Works where contracts are negotiated: Review proposes redlines as native Word tracked changes against a team's playbooks, and the same engine runs in Google Docs and on the web.
• ✓Covers more than single documents: Associate runs multi-document work such as data room reviews and disclosure schedules under lawyer supervision, and Autonomous Contract Management, now generally available, handles intake from email, Slack and Salesforce.
• ✓Strong security posture for legal data: SOC 2 Type II, HIPAA with BAAs, GDPR and an EU AI Act low-risk assessment, plus zero-data-retention agreements with OpenAI and Anthropic.

Limitations

• –No published prices: pricing is custom per team member and quoted through a demo, though a 7-day free trial is open to individual lawyers and legal teams.
• –Built for transactional contract work: it does not cover litigation research or case law analysis, so firms that need both will pair it with a research platform.
• –No MCP server or public developer API is published, so connections beyond its document-management and storage integrations are not available.