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CHAI agent at work · Tender review / United Kingdom
The lowest tender left out the steel beam.
ArchX showed how omitted work changed the tender comparison, kept submitted sums visible and wrote the questions needed before the client accepts an offer.
Inside the original output
| Tenderer | Submitted, ex VAT | Comparison, ex VAT |
|---|---|---|
| Hartfield | £68,733.00 | £68,733.00 |
| Mereworth | £65,330.00 | £69,906.50 |
| Oakden | £73,950.00 | £74,950.00 |
The report adds unpriced items for comparison only. Mereworth could still be lowest if it includes the omitted work without changing its price; written clarification decides that.
What you can do with it
Ask Mereworth to confirm the rear-wall removal, patio removal and steel beam in its offer. The client can then compare complete scope before accepting a tender.
The deliverable
Open what ArchX produced.
Original files from this run. No sign-up.
The recommendation is conditional on clarification. This was a fictitious tender exercise; the files are the original outputs from the recorded ArchX run.
The starting point
What ArchX received.
Read the original request and file list
The request
Three tenders came back for 14 Larch Walk … Please check them – arithmetic, qualifications, anything missing, provisional sums – compare like with like and write the tender report for our clients with a recommendation. A comparison spreadsheet and the report as a document, please.
The project files
- Return 1 - Hartfield Build Ltd - priced schedule.xlsx
- Return 2 - Oakden Construction Ltd - tender letter.pdf
- Return 3 - Mereworth Builders Ltd - tender.pdf
- Schedule of Works rev A (issued 22 Oct 2026).xlsx
- Invitation to tender - summary of our terms.txt
- Specification notes.txt
- LW-001 Location plan rev A.pdf
- LW-002 Block plan rev A.pdf
- LW-100 Existing ground floor plan rev A.pdf
- LW-110 Existing elevations rev A.pdf
- LW-200 Proposed ground floor plan rev A.pdf
- LW-210 Proposed elevations rev A.pdf
- LW-220 Proposed section A-A rev A.pdf
Try it on a job you know
Give it the task.
Then keep going.
Describe the work in your own words. Start with a project you know, inspect the result and ask for the next change in the same conversation.
Bring these files
A schedule of works and the contractor returns from one completed tender.
What to check
Choose an omission you already know. Can you trace it to the return, see its treatment in Excel and use the clarification question?
Before using client files, review how ArchX handles project data.
What could you ask next?
A suggested follow-up, once you have reviewed the result and added the new files:
The contractors’ replies are now in the project folder. Update the comparison, show which exclusions are resolved and revise the client recommendation.
Download for Mac or Windows, connect your ChatGPT account or API key, then give ArchX this request with your files. AI usage runs through your connected account. Pricing and account requirements.