Short answer: On 9 November 2026 Archinect reported that AI companies and data brokers are approaching architecture and other AEC firms with offers of money, including a social post by Nyne.ai quoted as offering “six figures” for “3 years of CAD files,” to train models on how design work gets done. USC adjunct professor Simon Ha, whose LinkedIn post Archinect reproduces, warned that possessing those files does not necessarily mean a firm has the right to sell them for AI training, and that removing client names may not resolve that. Before you reply to a buyer, read the appointment or licence, list what you would actually hand over, and keep a dated record of the exact package and the message you sent. A TimeBind cannot tell you whether a sale is allowed. It can date the files and correspondence you kept.
Last checked 12 November 2026. General information for architects, designers and AEC firms, not legal, contract or professional-practice advice. Whether a firm has the right to license or sell a drawing, model or project record depends on the contract, the country and the facts; TimeBinder does not decide that. A dated file is not proof of ownership, and it does not authorise a sale.
Table of Contents
What was reported
Archinect’s Niall Patrick Walsh, writing on 9 November 2026, described AI companies turning to architects and other AEC firms for data, as they try to train models and agents for tasks such as reviewing drawings and writing RFI responses. The article opens with a LinkedIn post by Simon Ha, a USC adjunct professor: “This AI company is offering to pay six figures for your CAD files, including revisions and markups, to train AI models on how design work gets done.” Ha included a screenshot of a social post by Nyne.ai, which Archinect says describes itself as “the data factory for AI,” offering: “You’ve got 3 years of CAD files doing nothing. We’ll pay you six figures for them.”
Ha’s own comment, as quoted by Archinect, is the useful caution: the approach “raises serious questions about copyright and ownership of instruments of service.” He added that possessing the files does not necessarily mean the firm has the right to sell them for AI training, and that “removing client names doesn’t necessarily resolve those issues.” Those are reported comments, not a court finding, and they are not legal advice. They are a reason to slow down.
Archinect says Nyne.ai is not alone. It quotes brokers who say buyers are asking for CAD and project files from construction and architecture firms, and who argue that design files were never as widely available for training as text and code. One broker, as quoted, points to a Fast Company report from August 2026 that drawings and 3D models sit in individual firms’ servers and filing cabinets. We have not independently re-opened that Fast Company article here; the citation is Archinect’s.
Measured discussion on X in the following days was modest. Archinect’s own post of the story on 9 November 2026 had 1,281 impressions when read on 12 November. A related, slightly earlier post on 28 October by a data-broker account about demand for CAD and engineering design data had 22,224 impressions. Google autocomplete on 12 November 2026 did not suggest queries around “sell CAD files AI training.” The demand is news-driven.
What an offer does not settle
An email that offers a large fee for an archive is not a determination of who may license that archive. Architectural drawings, Revit models, markups, specifications, photographs, emails and consultant files often sit together in one folder and were created under different appointments, for different clients, sometimes with consultants who retain their own rights. A client’s name being stripped from a title block does not, on its own, tell you what the contract allowed you to do with the file.
Practice already treats this carefully in other settings. If an appointment ends and the design is reused, or if a model is issued for construction, firms are used to asking who may keep, issue or rely on which file. The same questions apply when the buyer is an AI lab or a broker rather than another designer. For a plain-language starting point on US and similar practice, see who owns architectural drawings and how to protect a design before you send it to a client. Those pages do not decide your contract.
None of this is a finding that any named company has done something unlawful, or that every offer is a bad offer. Some firms may have a clear right to license some of their own library work. The point is narrower: do not treat a price and a folder path as the whole analysis.
Practical checklist before you reply to a buyer
- Do not send the archive while you decide. A first reply can acknowledge the approach and ask for the proposed licence in writing. You can say no later. You cannot un-send a model.
- Read the appointment or licence for each job in the proposed set. Look for clauses on instruments of service, reuse, confidentiality, moral rights, sub-consultants and any limit on using the work for purposes other than the project. If the wording is unclear, get advice before you agree.
- List what would actually be handed over. CAD and BIM files often include consultant models, manufacturer objects, client-supplied surveys, photographs, and markups that are not your authorship. Write down the job, the date range, the file types and who created each part.
- Separate a reuse library from a client job. Standard details or families you created for yourself are a different question from a named project’s construction issue set. Do not mix them in one zip file just because they live on the same disk.
- Ask what the buyer will be allowed to do. Training, resale to other labs, publication of extracts, and keeping a copy after the deal ends are different permissions. If the draft talks only of “access to data,” ask for the actual licence terms.
- Keep the offer, your list, and the package you eventually send. Save the email or form, a written inventory, and a copy of the exact files (or an export) as they stood when you sent them. If a later dispute is about what was disclosed, you need the version that went out, not a later edit of the same folder.
- Date the inventory and the files you kept. A TimeBind of a packed export, an IFC snapshot or a file list lets you show that those exact items existed no later than a recorded time and still match. For issued models, see also timestamping a Revit or BIM version before you issue it and how to prove a CAD, BIM or Figma file existed before a date.
- If you refuse, keep that too. A dated copy of the offer and of your refusal is as useful as a dated copy of a deal, if someone later claims you agreed to more than you did.
What a TimeBind does and does not show
A TimeBind is a dated, checkable record that an exact file existed no later than a recorded time and still matches. The SHA-256 fingerprint is made in your browser and the file is never uploaded. The record is anchored to Bitcoin (a Merkle root in an OP_RETURN). Your first Pooled TimeBind is free; after that, TimeBinds start from US$5, and an ASAP TimeBind is US$15. See how it works.
Here it is useful for the packed export or IFC snapshot you kept, the inventory of what was in it, and the correspondence. It shows that those exact files existed no later than the recorded time and still match.
A TimeBind does not interpret your appointment, does not show who designed a drawing, does not create or prove copyright or ownership, does not authorise a sale or a licence, and does not show what a buyer later did with a copy. It is one piece of a timeline. If you are also being asked to install an AI tool that can read or change models on your own machine, that is a different decision; see AI CAD tools and what to keep before you install them.
Limits
We have not verified Nyne.ai’s current marketing, and we have not audited any broker’s terms. Offers, prices and licence wording will differ, and they may change. Archinect asked readers whether they had been approached; individual anecdotes in comments are not used as facts here. Contract and copyright rules differ between the US, the EU, the UK, Australia and other places. This page is not a substitute for advice on your own appointments.
Tools that can help
For a file list you can compare later, the free bulk SHA-256 manifest tool hashes a folder in your browser. For issued drawings, see how to prove an AutoCAD DWG existed before a date and the architecture timestamping hub.
Frequently Asked Questions
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Are AI companies really offering money for architects’ CAD files?
Archinect reported on 9 November 2026 that they are, describing approaches to architecture and other AEC firms and quoting a Nyne.ai post offering six figures for three years of CAD files, plus brokers who say buyers are asking for those files. We have not independently confirmed any particular deal or price.
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If my firm has the files on its server, can we sell them for AI training?
Not necessarily. Simon Ha, as quoted by Archinect, said possession does not necessarily mean the firm has the right to sell the files for training, and that removing client names may not fix that. The answer depends on your appointments, licences and the law that applies. This page does not decide that for you.
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Does deleting client names from a title block make a sale safer?
Ha’s reported view is that it does not necessarily resolve the issue. A file can still be a client’s instruments of service, include consultant work, or be covered by confidentiality, even with names removed. Read the contract and get advice before you agree.
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What should I keep if I am approached?
Keep the offer, a written inventory of what would be included, the exact package you send or refuse to send, and the messages you exchanged, all as they stood at the time. A dated record of those files can later show they existed by a recorded time and still match.
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Does a TimeBind mean I am allowed to sell the files?
No. A TimeBind is a dated, checkable record that an exact file existed no later than a recorded time and still matches. It does not create or prove ownership, and it does not authorise a licence or a sale.
Sources checked
- Archinect, Niall Patrick Walsh, “AI companies are offering architects six figures for CAD files; have you been approached?,” 9 November 2026, https://archinect.com/news/article/150573603/ai-companies-are-offering-architects-six-figures-for-cad-files-have-you-been-approached (read 12 November 2026)
- X: @archinect, 9 November 2026 (public metrics read 12 November 2026: 1,281 impressions, 4 likes, 1 bookmark). Supporting: @RyanLockAI, 28 October 2026 (22,224 impressions, 30 likes, 5 reposts)
- Google autocomplete, 12 November 2026 (US): no suggestions returned for seeds including “sell cad files AI training” and “AI companies buying CAD files”
Date the CAD archive you keep yourself
Your first Pooled TimeBind is free, with no credit card required. After that, TimeBinds start from US$5, and an ASAP TimeBind is US$15. Click here to start, or see plans and pricing.
Related: Revit Autodesk Assistant and Dynamo MCP: what architects should keep.
