TechFides: October 2026
The short answer: AI for law firms is safe when client files stay inside the firm. Public chatbots are fine for work with no client data in it. For anything privileged, use private AI that runs on hardware your firm owns, so documents never leave the building. A small firm can start for $5,000 setup and $500 a month.
Here is the uncomfortable part. Most firms are already using AI. They just did not choose it. An associate pastes a deposition outline into ChatGPT to tighten it. A paralegal summarizes a medical record with a free tool on her phone. Nobody signed off, nobody logged it, and nobody can tell you today where that text went.
This guide is for the managing partner who wants the speed without the exposure.
What does AI actually do for a law firm?
Strip away the marketing and AI does four jobs well in a firm:
- Document review. It reads a stack of contracts, discovery, or records and pulls out what matters: dates, parties, obligations, inconsistencies.
- First drafts. Engagement letters, demand letters, routine motions, client updates. A lawyer edits instead of starting from a blank page.
- Search in plain English. "Which of our leases have an assignment clause?" answered from your own files in seconds.
- Client communication. Status updates and intake answers drafted in the client's language, ready for a lawyer to approve.
It does not practice law. It drafts, sorts, and finds. Your lawyers decide.
Is ChatGPT safe for lawyers?
For client work, no. The problem is not that the tool is bad. The problem is where the text goes.
When you paste a client document into a public AI tool, it leaves your network and lands on another company's servers. Depending on the plan and the settings, it may be stored, reviewed, or used to improve the model. You are now trusting a vendor's terms of service with a duty that belongs to you.
The American Bar Association addressed this directly in Formal Opinion 512 (July 2024). In plain terms, it says lawyers using generative AI must understand how the tool handles client information, protect confidentiality under Rule 1.6, and get informed client consent before putting client information into tools that can disclose it. That is a hard standard to meet with a dozen personal subscriptions nobody tracks.
There is a second risk, and it is not about privacy. AI can invent things. In Mata v. Avianca (2023), lawyers were sanctioned after filing a brief with case citations an AI tool made up. Any AI your firm uses needs to show its sources, and a lawyer needs to check them.
Rented AI or private AI: which fits a law firm?
| Public chatbots | Rented legal AI platforms | Private AI on your hardware | |
|---|---|---|---|
| Where client files go | The vendor's cloud | The vendor's cloud | Stay in your office |
| Pricing | About $20 to $30 per user per month, per tool | Per user, often much higher | One setup fee, then a flat monthly fee |
| Who controls the logs | The vendor | The vendor | Your firm |
| Cost when you hire | Goes up with every seat | Goes up with every seat | Does not change |
| Best for | Work with no client data | Firms comfortable with a vendor holding files | Firms that want files to never leave |
Cloud tools are not evil. For a blog post, a general research question, or a CLE summary, they are fine. The line is simple: if the text holds client information, it should not leave the building.
What does private AI cost a law firm?
Here is the honest math for a firm of ten.
Rented: ten seats of an AI assistant at about $30 each is $300 a month, before the extra tools people sign up for on their own. Most firms we meet are already paying for three or four overlapping subscriptions, none of them governed.
Private, with TechFides:
- Up to 5 people: $5,000 setup with the hardware included, then $500 a month.
- A full team at one office: $10,000 setup, then $1,000 a month.
- Several offices: from $15,000 setup, then $2,500 a month.
No per-attorney seats. Hire three associates next year and the bill does not move. The monthly fee covers support, updates, and the changes your team asks for, not a license to log in.
How do you start without risking a client file?
- Find out what is already in use. Ask your team, without blame, which AI tools they use and for what. You will be surprised.
- Draw the line in writing. Client information goes only into tools the firm controls. Everything else is fine for public tools.
- Pick one job to start. Document review or first drafts, whichever eats the most hours. Prove it on one job before adding the next.
- Keep a lawyer in the loop. Nothing goes to a client or a court without an attorney approving it.
The questions people actually ask
Is it safe for lawyers to use ChatGPT?
It is safe for work that holds no client information, like brainstorming a blog post or explaining a general legal concept. It is not safe for client files, deposition outlines, or anything privileged, because that text leaves your firm and sits on another company's servers under that company's terms. ABA Formal Opinion 512 asks lawyers to understand exactly that risk before using a tool, and to get informed client consent when client information goes into it.
What is the best AI for a small law firm?
The best AI for a small firm is the one that keeps client files inside the firm and gives your team document review, drafting, and plain-English search over your own files. For most firms that means private AI on hardware the firm owns, plus normal cloud tools for work that holds no client data.
How much does AI cost for a law firm?
Rented tools run about $20 to $30 per user per month each, and most firms end up paying for several. Private AI from TechFides starts at $5,000 setup with the hardware included, then a flat $500 a month for up to 5 people. A full team at one office is $10,000 setup and $1,000 a month. There are no per-attorney seats.
Can AI replace a paralegal or an associate?
No. It drafts and sorts. A lawyer decides. Courts have sanctioned lawyers who filed AI-written briefs with invented citations, so every AI draft needs a person who checks the sources before it goes anywhere.
What is private AI for a law firm?
Private AI is AI that runs on hardware inside your firm instead of a cloud service. It reviews documents, drafts letters and first drafts, and answers questions from your own files, and client files never leave the office. People also call it on-premise AI.
How we handle it
TechFides builds private AI for law firms on hardware in your office, behind your firewall. Client files never go to a cloud AI service, every request is logged on your own machine, and your team gets document review, drafting, and plain-English search over your own files. Most firms are running in two to six weeks.
If you want to see where your firm loses the most hours first, the free AI Fit Check takes a few minutes.
Own your AI. Keep your clients' secrets where they belong.
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