Using ChatGPT or Claude to Review a Contract Before You Sign

The Short Answer

Use the tool to understand the contract. Do not use it to decide whether to sign. ChatGPT and Claude are good at turning dense language into plain English and at listing what a document covers. They are not reliable on what New York law does to those terms, and they know nothing about your deal beyond what you type.

Three cautions before you start:

1. Your AI conversation may not be privileged and could be subpoenaed if the deal ends in a lawsuit.
2. The contract may not be yours to share. Uploading the other side’s draft to a free AI tool can breach its confidentiality clause.
3. AI tools state wrong answers with confidence, including dates, deadlines, and the law.

What an AI Tool Does Well

• A first summary. Who owes what, when payment is due, how long the contract runs, and how each side gets out.
• Translating the language. Indemnification, limitation of liability, assignment, and the other clauses most people skim.
• Spotting what is missing. No cure period before default, no cap on liability, nothing on who owns the work.
• A list of questions. Questions to ask the other side, or your lawyer, before you sign.
• Comparing drafts. What changed between the version you negotiated and the version you were sent to sign.

Where It Goes Wrong

It describes clauses that are not there. An AI tool can report a termination right, a cap, or a notice requirement that the document does not contain, or miss one that it does.

It miscounts dates. Automatic renewals, notice windows, cure periods, and payment deadlines are where a wrong count costs money, and they are exactly what these tools get wrong.

It answers under general contract law. Unless you ask about New York, you will often get an answer that blends the law of several states, or no state at all.

It does not know your deal. It cannot tell you that the price in the contract is not the price you agreed to on the phone, or that the clause it calls standard is the one your business cannot live with.

It tends to reassure. Ask whether a contract is fair and you will usually hear that it is fairly standard. Most contracts that end up in court looked standard when they were signed.

Two Habits That Catch Most AI Mistakes

Make it quote the exact clause. For every point the tool raises, ask it to quote the contract word for word and give the section number. Then find that language in the document yourself. If the tool cannot quote it, treat the point as unproven.

Count every date by hand. Take each deadline, renewal date, notice period, and cure period off the contract and count it yourself on a calendar. Never accept the tool’s arithmetic on a date.

These are the same two habits I follow in every contract review.

New York Risk 1: Your AI Conversation May Not Be Privileged

What you tell your lawyer is privileged. What you type into ChatGPT or Claude is not a conversation with a lawyer. In United States v. Heppner, 820 F. Supp. 3d 292 (S.D.N.Y. 2026), a federal judge in Manhattan held that a defendant’s own conversations with Claude about his case were neither privileged nor work product, in part because the provider’s privacy policy allowed it to collect the conversations and disclose them to third parties. The court added that putting privileged information into the tool waived the privilege. Sending the results to his lawyers afterward did not change the outcome.

Other courts have protected a self-represented litigant’s AI work, including the Nassau County Supreme Court in Assini v. Hayward, 2026 NY Slip Op 26086 (Sup Ct, Nassau County 2026). Those decisions involved preparation for a pending case. A chat about whether to sign a contract happens before any dispute exists.

In practice:

• Do not type anything into the chat that you would not want read aloud at a deposition.
• Never paste your lawyer’s advice or emails into an AI tool.
• If the deal has already turned into a dispute or a lawsuit, keep it out of ChatGPT, Claude, and every other AI tool, and talk to your lawyer.

For the case law in detail, see my article on whether AI prompts are privileged or discoverable in New York.

New York Risk 2: The Contract May Not Be Yours to Share

Many draft contracts are marked confidential, and many deals start with a nondisclosure agreement. Depending on the tool and your settings, the provider may keep what you upload and use it to improve its models. Before you paste a contract in:

• Read the confidentiality clause in the draft and in any NDA you signed.
• Check the tool’s data settings, and use a business account that does not train on your inputs if you have one.
• If in doubt, take out names, prices, and account numbers first.

New York Risk 3: General Answers Miss New York Rules

A few New York rules that a general answer often leaves out:

• Freelancers. If you hire an independent contractor who is one person, or a company made up of one person, for services worth $800 or more, New York’s Freelance Isn’t Free Act requires a written contract. The $800 counts all of your contracts with that person over the preceding 120 days. N.Y. Gen. Bus. Law §§ 1410(3), 1412(1).
• LLC operating agreements. The members of a New York limited liability company must adopt a written operating agreement, which may be signed before, at the time of, or within 90 days after the articles of organization are filed. N.Y. Ltd. Liab. Co. Law § 417(a), (c).
• Construction contracts. Payment deadlines and void clauses under New York’s prompt payment law. See my page on construction payment disputes in New York.
• Time to sue. Most contract claims carry a six-year limitations period under CPLR 213(2), and claims for the sale of goods four years under UCC 2-725. See my article on the statute of limitations for contract disputes.

Send Me the Contract and the AI Summary

If you have already run the contract through ChatGPT or Claude, send me the summary along with the contract. I will tell you what it got right, what it missed, and what it got wrong under New York law.

Within one business day, I quote a flat fee for the review. Nothing is billed until you accept. Once you do, the review comes back within three business days as a marked-up draft with a plain-English explanation of each change. Details are on my flat-fee contract review page.

Sending the summary to me does not make the original chat privileged, so keep the chat itself free of anything you would not want the other side to read.

Related: Flat-Fee Contract Review · AI Prompts and Privilege · Film Production Contracts · Your Business Was Sued · All Articles

This article is general information, not legal advice, and does not create an attorney-client relationship. It describes New York law and court decisions as of November 2026, and courts are deciding the AI questions case by case. Attorney advertising.