Understand a contract, lease or official letter
Upload a lease, contract or official letter and ask sharper questions about it. What AI reads well here, what it misses, and where it stops.
Clause 9 defers to clause 12.3. Clause 12.3 defers to Schedule B. Schedule B is two pages of definitions, and it becomes hard to follow what you are agreeing to.
Fourteen pages of this, and the agency wants it signed by Friday. None of it was written to be read quickly. It was written to be precise, which is a different goal from being clear.
You are allowed to not understand it yet. Getting from there to a list of sharp questions is the job on this page.
Platform: Web, iOS, Android
Models that read PDFs: 25 of 60, four of them on the free plan
Free uploads: 1 file per message, up to 10MB, 3 a day
Price: Free, or Pro at $20.99/mo
Where this helps, and where it stops
MultiChats will read a document and explain it in ordinary language. It can lay out what a clause appears to say, and pull out the parts that cost money.
It does not give legal advice, and neither does this page. Real money, a deadline you cannot miss, a right you could sign away: someone qualified still has to read the document. Use the chat to walk into that conversation already knowing where the problems might be.
Get the document in first
Attach the file before you type a word.
25 of our 60 models take a PDF directly, across OpenAI, Anthropic, Google and xAI. The four on the free plan are GPT-5.4 Nano, Gemini 3.5 Flash Lite, Gemini 3.1 Flash Lite and Gemini 2.5 Flash Lite.
Pick one before you attach. If the selected model cannot read PDFs, the app refuses the file and tells you to switch. That refusal is deliberate: a document half-read in silence is worse than one that never uploaded.
If it is a scan, make it prove it read the page
Plenty of official letters and older leases arrive as photographs of paper. A scan carries no text layer. Signed in, a scanned PDF of up to 20 pages gets transcribed first. Past that, what the model makes of the page is out of our hands.
Sometimes that goes fine. Sometimes it quietly does not.
Test it in one message. Ask it to quote the opening line of clause 4 back to you, word for word, then check it against the page. If it paraphrases, hedges, or produces a sentence that reads too smoothly, it is not reading your document. Retake the photo straighter, or type the clause in by hand.
Ask what the document lets people do
"Is this a good contract" earns you a shrug in 300 words. Narrow it down.
What am I agreeing to do, in plain language, in ten bullets?
What does this let the other side do that I might not be expecting?
List every clause involving money: the amount, the date, and who decides it.
How does this end, for them and for me, and what does ending it cost each of us?
Which parts are unusual for this kind of agreement?
Then follow up. If it says notice is three months, ask which clause says so and make it quote the line.
The failure you cannot see
A model reads what is on the page. Which means its worst mistake here is a clause that is absent. Nothing raises a flag, the summary comes back tidy, and the protection you assumed was in there never was.
Two more worth watching. Cross-references get tangled: "subject to clause 12.3" sends the model somewhere, and it is not always the right somewhere. And local law gets answered with confidence the model has no basis for. A tenancy rule in Brussels is not a tenancy rule in Berlin, and a model asked which applies will usually pick one.
So ask it outright: what would a document of this kind normally contain that this one does not? Read the reply as a list of things to check. Never as a finding.
A second model, same clause
Every answer has a branch action in the menu beside it. Branching opens a new thread from that point, carrying the conversation and the attached document with it. Choose a different model that also reads PDFs, and put the same question to it.
Most of the document will come back the same both times. The places it does not are your reading list. A clause one summarised and the other walked past is the clause to go and read yourself.
Check the rule it cites
When an answer leans on a named law or a notice period, do not take the citation on trust. Web search runs inside the conversation and comes back with links. The three Gemini Flash Lite models on the free plan handle a PDF and a search. Free accounts get 2 searches per 30 days. On mobile, search sits behind Pro at the button.
Then open the link. A source that says something slightly different from the summary is the most useful result here.
Before you upload a lease
This page deserves the plain version.
We do not train on your conversations. What the provider behind a given model does varies. Six of the 60 carry a notice on their info card. Grok's says it in as many words: "xAI may use your conversations to train Grok models." Four OpenRouter-routed models carry their own. The other 54 cards are blank. Choose the model before you attach something with your signature on it.
Temporary Chat, currently in beta, covers the one-off read. It will not appear in your history and will not be used to personalize your experience.
What you should end up with
A list of questions in your own words about your own document. Ready for the landlord, the agency, or whoever signs off on this sort of thing. Working out what you are being asked to sign is the part you can do on a Tuesday night. Deciding whether to sign it is still someone else's job to advise on.
Frequently asked questions
Can AI read my lease if it is a PDF?
Yes, on 25 of our 60 models the PDF goes straight through. Four of those sit on the free plan: GPT-5.4 Nano and the Gemini 3.5, 3.1 and 2.5 Flash Lite models.
Is any of this legal advice?
No. MultiChats explains what a document appears to say and helps you form questions about it. It cannot advise you on your rights, your jurisdiction or your decision. For anything with money, a deadline or a legal consequence attached, take it to a qualified professional.
What if my document is a scan rather than a text PDF?
Scans behave differently. Up to 20 pages, a signed-in account gets a transcript, which can misread a figure. Longer scans vary. Verify by asking it to quote a specific line back word for word before relying on the summary.
How do I get a second opinion on the same clause?
Branch from the answer. That opens a new thread carrying the conversation and the document with it. You can then put the identical question to another model. Where two models disagree, read that clause yourself.