Document comparison
Hustro AI compares two versions of a construction drawing or document and highlights every change – additions, deletions and modifications – in seconds. No more manual side-by-side checks, no more missed design updates on site.
Challenges
Document chaos costs projects time and money
New versions of contracts, drawings, specifications and cost plans are produced under pressure – edited by multiple people, with no clear change history and no easy way to see what changed.
Untracked design changes
Changes to drawings and specifications are not clearly tracked – teams lose control of which version is current.
Different teams, different versions
Designers, contractors and cost managers work from outdated files, leading to rework and disputes.
Manual comparison takes hours
Comparing PDF drawings or Word specifications side by side takes hours, and small changes are easily missed.
Missed changes cause claims
Unnoticed specification changes lead to claims, programme delays and unnecessary costs.
Key features
Automatic change detection powered by AI
Changes in content and numbers
AI finds every difference in text, values, dimensions and units in seconds.
Specification and material changes
Material names, technical requirements and quantities are flagged automatically.
Visual markup
Additions, deletions and modifications are clearly highlighted in the compared versions.
Change classification
Differences are tagged as editorial, cost, quality or contractual.
Comparison report
A ready PDF or Excel report for the project team, site instructions or audits.
In practice
Two document versions, one list of changes
1Upload two versions
Add two versions of a drawing, specification, contract or cost plan – PDF, Word, Excel or CAD.
2AI highlights the differences
The system compares content, numbers and parameters, marks changes and rates their importance.
3Everyone works on the current version
The change report goes to the team – everyone knows what changed and when.
Benefits
Faster, more accurate, zero missed changes
- Time savings – up to 90% faster than manual side-by-side review.
- Complete change record – every addition, deletion and modification is flagged and recorded.
- Fewer disputes – design teams and contractors work from a verified, up-to-date version.
- No costly rework – avoid claims and delays caused by missed specification changes.
- Time for experts – estimators, BIM coordinators and quality managers focus on decisions.
AI Labs
See other AI prototypes
In AI Labs we test AI on tasks typical of construction.
Automatic quantity takeoff
AI analysis of construction drawings (PDF, CAD, BIM) – automatic element recognition and material quantity calculation.
See prototype →
Automatic issue descriptions
AI analysis of site photos – defect recognition, issue classification and description generation in seconds.
See prototype →How it works
How to get access to Hustro AI Labs
Get in touch
Fill in the contact form and tell us about your business, your team size and the processes you want to improve with AI.
Discovery call
We discuss your challenges and identify which AI prototype best fits your workflow and project type.
Prototype setup
We configure the AI prototype for your data – your drawings, your document formats, your standards.
Testing on a real project
You test the prototype on a live project with your team. We support you throughout and gather feedback.
Results and next steps
We analyse the results together and plan next steps – further development, integration with Hustro or a wider rollout.
Try Hustro AI Labs on your construction project
Our AI prototypes are available for select clients and partners. Get in touch and we will find the right prototype for your team and project type.
Get access to AI Labs
Our team will get back to you within 24 hours
Tomasz Jones
Digitalisation Specialist
FAQ
Frequently asked questions
What is AI construction document comparison?
It is a Hustro AI Labs prototype that automatically detects differences between two versions of a construction document – drawings, specifications, contracts or cost plans – and presents them as a visual markup, ready to share or include in a change report.
What types of documents can the AI compare?
PDF drawings, CAD files, Word specifications, contracts and cost plans. It detects changes in content, numbers, dimensions, material names, technical parameters and units.
How much faster is it than manual review?
Based on testing with construction teams, AI comparison is up to 90% faster than manual side-by-side review – several hours of engineer time reduced to seconds, with a complete change record.
Can the AI detect small changes in specifications?
Yes – this is where AI outperforms manual review. It catches a changed dimension, a modified material specification or an updated unit value that are easy to miss under time pressure.
What does the output look like?
A visual markup of the compared documents with all differences highlighted – additions, deletions and modifications flagged separately. Ready to share with the team or attach to a change notification.
Does it integrate with Hustro CDE?
The prototype currently works as a standalone tool. Integration with the Hustro CDE is planned, so comparison can run automatically when a new revision is uploaded. Testing clients get early access.
How do I get access to the prototype?
The prototype is available to select clients and partners through the Hustro AI Labs programme. Fill in the contact form on this page – we will get back to you within 24 hours.
