Scrivly vs. Westlaw AI
Westlaw AI adds artificial intelligence capabilities to Thomson Reuters\u2019 established legal research platform. Scrivly is a purpose-built AI platform with verified accuracy, comprehensive court opinion coverage, and workflows that adapt to how your firm practices.
Side-by-side comparison
Based on publicly available information. Updated as products evolve.
| Feature | Scrivly | Westlaw AI |
|---|---|---|
| Approach | Purpose-built AI platform | AI features added to research platform |
| Hallucination rate | Below 0.5% via proprietary verification | Not publicly disclosed |
| Legal corpus | Every published court opinion + your own files | Thomson Reuters databases |
| Document generation | 792 document types across 22 practice areas | Templates via Practical Law |
| Workflows | 137 pre-built + unlimited custom workflows | Research-focused workflows |
| Adaptive intelligence | Learns your firm’s patterns, creates custom workflows automatically | Static feature set |
| Independence | Standalone platform, no dependencies | Requires Westlaw subscription |
Purpose-built vs. build-on-top
The difference between adding AI to an existing product and building a product around AI is not cosmetic. It affects every layer of the experience.
AI-first architecture
Scrivly was designed from the ground up as an AI platform for legal work. The result is a hallucination rate below 0.5%, coverage of every published court opinion alongside your own files, 792 document types across 22 practice areas, and workflows that adapt to how your firm actually practices. These capabilities are difficult to retrofit onto a platform that was built for something else.
- Hallucination rate below 0.5%
- Every published court opinion + your own files
- 137 pre-built + unlimited custom workflows
- Learns how your firm works over time
AI on top of legal research
Westlaw AI enhances Thomson Reuters\u2019 comprehensive legal research platform with AI-powered search, summarization, and analysis. The underlying content library is unmatched in depth and breadth. The AI capabilities are designed to make existing Westlaw workflows faster and more intuitive, not to replace them or serve as a standalone document analysis platform.
- Primary content: published legal databases
- AI layer on established research infrastructure
- Cloud-only deployment
- Requires active Westlaw subscription
Better together than either alone
Westlaw excels at secondary sources, treatises, and editorial analysis. Scrivly excels at accuracy (below 0.5% hallucination rate), comprehensive court opinion coverage, document generation across 792 types, and adaptive workflows that learn how your firm practices. Together, they cover the full spectrum of legal work.
The firms that get the most value from AI use the right tool for each job. For editorial commentary and secondary sources, Westlaw is hard to match. For drafting, document analysis, workflow automation, and working with your own files alongside published opinions, that is what Scrivly was built for.
Who should rely on Westlaw AI
- Firms that primarily need AI for searching published case law, statutes, and secondary sources.
- Organizations already deeply invested in the Thomson Reuters ecosystem.
- Teams that want AI-enhanced versions of existing Westlaw workflows.
Who should add Scrivly
- Firms that demand verifiable accuracy with a hallucination rate below 0.5%.
- Practices that need document generation across 792 types and 22 practice areas.
- Firms that want workflows that adapt and improve based on how they actually practice.
Frequently asked questions
Yes. Scrivly and Westlaw serve different functions. Westlaw is a legal research database with AI capabilities layered on top. Scrivly is a complete AI platform that combines every published court opinion with your own files, generates 792 document types, and runs 137 pre-built workflows. Many firms use both tools because they solve different problems.
Scrivly now includes every published court opinion in its legal corpus, which covers significant ground. However, Westlaw also offers secondary sources, treatises, and editorial content that Scrivly does not replicate. Where Scrivly excels is in accuracy (hallucination rate below 0.5%), document generation across 22 practice areas, and adaptive workflows that learn how your firm works. Many firms find the two tools complementary.
Scrivly uses its proprietary verification engine to check every claim against source material before presenting it to you. The result is a hallucination rate below 0.5%. Every response can be traced back to a specific source, whether that is a published court opinion or a document you uploaded. This means you can trust the output without having to independently verify every statement.
Every citation verified. Every source traceable.
See how Scrivly handles your firm's use cases.