In this guide · 7 sections
- 01Where AI contract review helps, and where it doesn't
- 02What Singapore guidance says about AI in legal work
- 03Confidentiality: check the tool's data settings first
- 04How to review a contract with AI, step by step
- 05Red flags in AI answers about contracts
- 06Do it yourself or get help?
- 07Frequently asked questions
Short answer
Use AI to summarise a contract, find clauses, explain terms and list questions for your lawyer. Don't rely on it for legal advice, Singapore law or whether a clause is enforceable. Use a business plan that doesn't train on your data, and check every answer against the clause it cites.
Where AI contract review helps, and where it doesn't
Large language models are pattern readers. They're strong at restating, finding and comparing text, and weak at knowing what the law says in your jurisdiction today or what a court would decide.
Good uses
- A one-page summary of a long agreement in plain English
- Finding clauses: termination, auto-renewal, liability caps, notice periods
- Comparing two versions to list what changed
- Explaining unfamiliar terms such as indemnity or set-off
- Drafting questions to ask the other side or your lawyer
- Building a checklist of dates and obligations
Risky uses
- Deciding whether a clause is enforceable under Singapore law
- Telling you whether to sign
- Interpreting statutes, case law or regulations without sources
- Contracts where a mistake is expensive: property, employment disputes, shareholder deals
- Drafting a final contract from scratch without legal review
Our AI hallucinations guide explains why models produce confident but wrong answers, which is the main risk in legal work.
What Singapore guidance says about AI in legal work
The Ministry of Law published its Guide for Using Generative AI in the Legal Sector on 6 March 2026. It is written for lawyers and in-house teams, but its three principles are a useful test for any business reviewing contracts with AI.
- Professional ethics: legal professionals remain ultimately responsible for all work products. For a business owner, the equivalent is that the AI's reading doesn't change what you agreed to.
- Confidentiality: safeguard client data and be mindful of how different GenAI models process and store it.
- Transparency: consider telling clients when GenAI is used substantially in their work.
If your lawyer uses AI, it's reasonable to ask how and with what tool. If you use AI before seeing your lawyer, tell them, and share the questions it raised rather than its conclusions.
Confidentiality: check the tool's data settings first
Contracts contain prices, names, bank details and sometimes NRIC numbers. Before uploading one, check which plan you're on.
| Account type | Training on your content by default? | Suitable for contracts? |
|---|---|---|
| ChatGPT Business or Enterprise, OpenAI API | No, per OpenAI's enterprise privacy page | Yes, with internal rules |
| Claude Team or Enterprise, Anthropic API | No, per Anthropic's privacy centre | Yes, with internal rules |
| Gemini in Google Workspace business plans | Covered by Workspace data terms | Yes, with internal rules |
| Free or personal plans (ChatGPT, Claude, Gemini) | Often on unless you switch it off | Avoid for confidential documents |
OpenAI's enterprise privacy page says it does not train on business data from ChatGPT Business, Enterprise or the API by default. On personal accounts, the training toggles are different for each tool; our AI training opt-out settings guide lists them.
If the contract contains customers' or staff's personal data, the PDPA applies. The PDPC's Advisory Guidelines on Use of Personal Data in Generative AI (July 2026) treat the business using an AI tool as responsible for compliance. Mask NRIC numbers, bank account numbers and home addresses before uploading; the AI doesn't need them to read the terms. Our ChatGPT at work policy guide has a policy template.
How to review a contract with AI, step by step
This routine keeps you in charge of the reading and makes every AI claim checkable.
Upload the full contract, not a summary
Upload the PDF or paste the full text, including schedules and anything incorporated by reference. Missing schedules are where surprises hide.
Ask for a summary with clause numbers
Prompt: 'Summarise this agreement in plain English. For every point, give the clause number and quote the key words.'
Ask targeted questions
Term and renewal, termination rights and notice, fees and price increases, liability caps, indemnities, data protection, governing law and dispute resolution.
Ask what's missing
'What terms would a small business customer usually want that are not in this contract?' Treat the answer as a list of questions, not facts.
Read each cited clause yourself
Open the contract at every clause number the AI gave and check it says what the AI claimed. Discard any point without a clause reference.
Write your questions for the other side or your lawyer
Turn the verified points into a short list of questions and requested changes.
Which model handles long documents best changes often; our Claude vs Gemini for long documents guide compares context windows and published long-context benchmarks.
Red flags in AI answers about contracts
Treat these as signs to stop and check carefully, or to ask a lawyer.
Stop and check if you see
Do it yourself or get help?
For everyday contracts such as software subscriptions, supplier terms and NDAs, a careful owner using a business AI plan and the routine above will understand the document better and ask better questions. For leases, employment disputes, shareholder agreements and anything high-value, use AI to prepare and a lawyer to advise.
We're an IT team, not lawyers. What we can do is make sure your staff use AI tools safely: our Security Awareness Training (S$390) sets up short lessons in your own account, and we can add your AI usage rules (which tools, which plans, what may be uploaded) to the programme.
Frequently asked questions
It can read a contract, summarise it, find clauses and explain terms in plain English, which helps you understand it and prepare questions. It can't reliably tell you whether a clause is enforceable under Singapore law or whether you should sign. Check every point against the clause it cites, and get a lawyer for high-value contracts.
It depends on the plan. Business plans such as ChatGPT Business or Enterprise, Claude Team or Enterprise and the APIs don't train on your data by default, per the vendors' published terms. Free and personal plans often do unless you switch it off. Mask personal data such as NRIC and bank account numbers before uploading.
No. AI can make you a better-prepared client by summarising, finding clauses and listing questions. It can be confidently wrong about the law and doesn't take responsibility for advice. Singapore's Ministry of Law guide stresses that legal professionals remain responsible for work done with AI, which reflects how much checking it needs.
Ask it to give a clause number and quote the key words for every point, then open the contract and read each cited clause yourself. Discard points without a clause reference. Be especially careful with claims about what the law says, which you should verify on Singapore Statutes Online or with a lawyer.
Tools with large context windows, such as current Claude and Gemini models, can read long contracts with schedules in one go. Rankings change often, so check current published long-context benchmarks. More important than the model is using a business plan, uploading the full document and verifying every answer against the text.