LOIS_Logo_Lockup_BWF_Black_Pos_RGB

Legal AI built for actual legal work.

Try LOIS today for free. No commitment required.

  • Uniquely powerful: Get instant access to anti-hallucination safeguards, a citator that finds silent treatments traditional citators can’t, and advanced image and video analysis

  • Rooted in truth: Every output cites verifiable sources, whether it’s a document you uploaded or a real court opinion — no more AI black box

  • Easy to verify: Inline links take you straight to the source to confirm arguments, quotations, and analyses

This free trial is exclusively available to active legal professionals, including attorneys, paralegals, and legal support staff.

 

We respect your data.

To see how we process and secure it, read our Privacy Policy.

Legal AI built for actual legal work.

Try LOIS today for free. No commitment required.

  • Uniquely powerful: Get instant access to anti-hallucination safeguards, a citator that finds silent treatments traditional citators can’t, and advanced image and video analysis

  • Rooted in truth: Every output cites verifiable sources, whether it’s a document you uploaded or a real court opinion — no more AI black box

  • Easy to verify: Inline links take you straight to the source to confirm arguments, quotations, and analyses

This free trial is exclusively available to active legal professionals, including attorneys, paralegals, and legal support staff.

 

We respect your data.

To see how we process and secure it, read our Privacy Policy.

Trusted by more than 4,500+ legal teams 

Start using LOIS today with no commitment. 

Research, drafting, and answers built on real authority. LOIS does the checking so you can get to the work.

Start Your Free Trial
PLG_LOIS UI_1_1296x480

Gain the LOIS advantage.

Compare key features and find the perfect fit for your needs.

 
Claude1, 2
ChatGPT3
Number of documents per thread
20
50
10
Max document size per file
500 MB
5 GB
512 MB
Total documents per day
Limited by context window
Unlimited
80 docs / 3 hours
Memory per user
Limited by context window
Unlimited
25GB

1 Claude Help Article on uploading files  2 Claude Help Article on usage limits 3 ChatGPT Help Article on file uploads

Gain the LOIS advantage.

Compare key features and find the perfect fit for your needs.

Number of documents per thread
50
Max document size per file
5 GB
Total documents per day
Unlimited
Memory per user
Unlimited
Claude 1, 2
Number of documents per thread
20
Max document size per file
500 MB
Total documents per day
Limited by context window
Memory per user
Limited by context window
ChatGPT 3
Number of documents per thread
10
Max document size per file
512 MB
Total documents per day
80 docs / 3 hours
Memory per user
25GB

1 Claude Help Article on uploading files  2 Claude Help Article on usage limits 3 ChatGPT Help Article on file uploads

Gain complete governance over your legal team

It Knows Your Matters

LOIS understands the relationships between every client, case, judge, expert, opposing counsel, deposition, and deadline. No copy-paste. No context-switching. Just answers grounded in your actual data.

It Takes Action, Not Just Notes

Ask LOIS to create a task, set a trial date, calculate pretrial deadlines, or schedule an appointment. One instruction. Done. This is agentic AI and it works, not just talks.

It Works for Every Role

Partners get portfolio visibility. Associates get research and drafting support. Paralegals get instant case status. Case managers get action, all from the same intelligence layer, tuned to each role.

casemanagement1

From Question to Action in One Conversation

LOIS doesn't stop at surfacing information. Once it finds what you need, it acts on it — creating tasks, setting deadlines, scheduling appointments, drafting documents without ever leaving the platform.

Case Manager Subagent Find any case by client name, incident date, or matter detail. Assign tasks, set trial dates, and auto-calculate the full pretrial deadline chain in a single instruction.

LOIS for Word AI-powered redlining, drafting, and review that lives inside every Word document. It knows your firm's voice, style guide, and prior precedent and applies it automatically.

Depositions Real-time transcription with goal tracking and unanswered question alerts during live depositions. LOIS listens so you don't miss a thing.
doc-management-context

Every Action. Every Answer. One Place.

Client Portal Integration

LOIS reads incoming client portal messages and can draft responses, create follow-up tasks, or schedule appointments, all triggered from a single prompt.

 

 

Outside Counsel Coordination

Shared project spaces with two-way document sharing mean no more chasing updates. LOIS keeps everyone in sync without the back-and-forth.

 

 

Compliance & Deadline Chains

Set a trial date and LOIS automatically calculates every pretrial deadline. Set a regulatory deadline and LOIS builds the reminder chain. Deadline misses are malpractice exposure. LOIS eliminates the risk.

enhance-communication

More Billable Hours. Less Administrative Drag.

When LOIS handles the research, the drafting, the case review prep, and the status tracking your attorneys spend more time on work that actually bills. Firms using LOIS report measurable, trackable ROI from day one.
billing-software

Delivering advantage at scale

15%

increased output

30%

faster recall

14%+

reduced drafting time

24%

efficiency gains

Frequently Asked
Questions

What is LOIS?

LOIS, the Legal Operating Intelligence System, is the first AI purpose-built to work for the modern law firm. Grounded in a decade of structured legal data across more than 40 million matters, LOIS goes beyond retrieval and summarization to take real action. LOIS can draft documents, validate good law, analyze video evidence and more.

LOIS is built for legal professionals, by legal professionals, and the intelligence behind it comes from the practice of law itself.

How is LOIS different from Harvey, ChatGPT, or other AI tools?

Unlike generic AI tools like ChatGPT or Claude, LOIS was built to understand legal work. It speaks the language of legal practice: matters, deadlines, documents, depositions, opposing counsel. It was trained on law, not the open internet, which means it doesn't just search for answers. Instead, it actually understands what you're asking.

The intelligence behind it reflects that difference. LOIS was built on a decade of structured legal data across more than 40 million matters.

Can I customize LOIS for my workflows?

Yes, LOIS lets you create standardized workflows. Through LOIS Skills, you can build user- or firm-specific workflows that apply your preferred style, voice, and approach automatically to drafting and review work, automate administrative tasks, dive deep on legal research or case prep, and more.

Can LOIS be used as a standalone legal AI platform?

Yes, Filevine is not required to use LOIS. You can always upgrade to Filevine later if you want additional workflow automation, knowledge management, and matter intelligence capabilities.

What security and compliance does Filevine provide?

LOIS maintains a zero-day data retention policy. Your data is never stored, logged, or used to train external models. On top of that, LOIS is SOC 2 Type II certified and HIPAA-aligned, and everything you bring into a session stays within your environment.

Seize the advantage

See what LOIS can do for you.

Try LOIS Today