Legend AI reads your P&IDs and PFDs, scanned or digital, and turns them into a process graph you can query. It runs on your own servers.
NGL and refining operator · Active, second contract
How it works
Models trained on photographs fail on line drawings. Legend AI finds every symbol and line, reads the tags in your own conventions, and links each tag to what it names. The result is a graph of your plant.
Finds every symbol and line on the sheet.
Reads the tags in your own conventions.
Links each tag to what it names.
A graph of your plant you can query.
In production, tag reading went from 77.76% to 99.49%. Every correction an engineer makes becomes training data.
What you get
Engineers review everything before it is used, and corrections re-run the affected results.
Counted under your own counting rules.
Generated from connectivity.
Carried from PFDs into P&IDs.
Security
A sealed instance in Docker on your own infrastructure.
No drawing, model or annotation leaves it.
Your engineers are trained on-site to run it.
Deployment
2–4 weeks
8–24 weeks
Ongoing


We sign an NDA before any technical discussion and reply within 48 hours.
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