LOIS (Legal Operating Intelligence System) is Filevine's AI, purpose-built for legal professionals on top of a decade of structured legal data. Unlike generic AI tools like ChatGPT or Claude, LOIS understands the full web of your practice: clients, cases, deadlines, documents, depositions, and opposing counsel. And unlike legal-specific point solutions, LOIS doesn't just summarize — it takes agentic action inside your practice management system.
Good law, down to the holding
LOIS Legal Research digs deeper to find case law that has weakened, criticized, or quietly undermined the specific text you plan to rely on, including cases that never cite the original case by name.
Patent-pending technology from Filevine, the platform trusted by thousands of law firms.
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The gap your citator can't close
Your citator is asking the wrong question.
It's checking the case. You're relying on a holding.
When a later court attacks a separate part of an opinion, a case-level flag tells you nothing. And when a court quietly undermines your point without citing the original, the flag never comes at all.
The result: a warning that doesn't help, or silence when you needed it most.
Not a flag. An answer.
Highlight the exact text you plan to rely on. LOIS searches every publicly available case that treated that specific point — cited or not — and returns a memo that tells you exactly where you stand.
Three steps, one defensible memo
Run your analysis and keep working. The report is ready when you are.
Step 1
Select
Open any opinion in LOIS and highlight the exact holding or passage you're intending to rely on.
Step 2
Search
LOIS Legal Research runs citation- and holding-based retrieval simultaneously, casting a net that traditional citators can't.
Step 3
Review
Receive a structured memo classifying how later courts have treated your specific point, with supporting passages and direct links to each opinion.
LOIS sees what traditional citators miss
| Traditional Citators | LOIS Legal Research | |
|---|---|---|
| Analysis level | Whole case | Specific holding or passage |
| Finds non-citing conflicts | No | Yes |
| Finds conflicting holdings that don't cite the original case | No | Yes |
| Returns structured treatment memo | No | Yes |
| Analysis level | |
|---|---|
| Traditional Citators | Whole case |
| LOIS Legal Research | Specific holding or passage |
| Finds non-citing conflicts | |
|---|---|
| Traditional Citators | No |
| LOIS Legal Research | Yes |
| Finds conflicting holdings that don't cite the original case | |
|---|---|
| Traditional Citators | No |
| LOIS Legal Research | Yes |
| Returns structured treatment memo | |
|---|---|
| Traditional Citators | No |
| LOIS Legal Research | Yes |
For everyone who signs the brief
Legal research tools can miss things. LOIS Legal Research gives you a documented, explainable process for verifying your authority so you know exactly what you're standing behind before it goes in a brief.
Patent-pending. Built on Filevine's legal AI platform, LOIS.
Whether you're a solo practitioner preparing a motion or a partner at a large firm handling an appeal before the circuit, the cost of citing undermined authority is the same. LOIS Legal Research is built for litigation at every scale.
- Commercial and appellate litigators
- Plaintiff and defense firms
- Associates handling brief research
- Partners doing final authority review
- Paralegals supporting high-volume litigation
FAQs
What is LOIS?
How is LOIS different from Harvey, ChatGPT, or other AI tools?
Generic AI tools lack structured legal context. They don't know your cases, your clients, or your deadlines. Legal-specific tools like Harvey are document-layer tools; they work on files you upload, not on live connected case records, and they can't create tasks, set deadlines, or take action inside your system. LOIS is the only AI built natively on Filevine's legal knowledge graph. It acts, not just answers.
Does LOIS work with my existing Filevine data?
Yes, and this is the point. If you use Filevine, LOIS already knows your cases. Every matter, document, deadline, and communication you've ever entered is available to LOIS the moment you activate it. You're already halfway there.
Can I customize LOIS for my firm’s workflows?
Yes. LOIS lets you create standardized workflows for your whole team — same input, same quality output, every time. LOIS also learns your firm's style, voice, and prior precedent over time, applying them automatically to drafting and review work.
Can LOIS be used as a standalone legal AI platform?
While LOIS integrates deeply with Filevine to provide matter-aware AI and access to your firm's data, Filevine is not required to use LOIS. Firms, legal departments, and government agencies can use LOIS as a standalone legal AI solution from day one, then connect it to Filevine later if they want additional workflow automation, knowledge management, and case intelligence capabilities.
What if my client needs access to case information?
Filevine offers unlimited guest access through our secure Client Portal. LOIS can read incoming client messages, draft responses, and schedule appointments all from a single prompt. Your clients get 24/7 visibility; your team gets time back.
What security and compliance does Filevine provide?
Filevine is SOC 2 Type II certified, HIPAA-aligned, and maintains a zero data retention policy for AI. Your data stays inside your environment and is never used to train external models.