AI plan review

See what every revision changed, and catch drawing errors before they reach the field.

ZonePillar compares each new plan revision with the last one, sheet by sheet, and reads a set of drawings together for errors. Every change and finding is outlined on the drawing, and an RFI is one click away.

AI plan review
How does drawing revision comparison work?
When a new revision is posted to a plan, ZonePillar pairs each sheet with its earlier version by sheet number and overlays them: red is what the earlier revision had, blue is what the new one added, and what did not move stays dark. Each change is outlined and listed with a short explanation.
What is a Not disclosed change?
A sheet that changed without a new revision entry in its title block. ZonePillar flags these so a change nobody clouded or listed does not slip through to the field.
What does a plan check find?
A plan check reads the drawings you choose together and looks for errors: equipment that does not match its schedule, sizes that do not add up, notes that contradict each other. Each finding is outlined on the drawing, red for an error and amber for something to check.
Can it write the RFI?
Yes. Draft RFI on any change or finding opens a new RFI already filled in with the sheet, the issue and a question. You review the text and save it like any other RFI.
How do I know where on the plan an answer came from?
When ZonePillar AI answers from a drawing, its link opens the sheet with a box around the exact spot the information came from, so anyone can check it against the drawing.
How is Plan Review billed?
Plan Review uses AI and is paid for in ZP tokens. You are charged what a run actually used, you can cap a plan check's spend before it starts, and a run that fails on our side costs nothing.

What changed between revisions

A comparison starts by itself whenever a new revision is posted to a plan.

  • Sheet-by-sheet overlay, red for earlier and blue for new
  • Sheets that changed with no new revision entry flagged Not disclosed
  • Filter to the sheets that need a look
  • The overlay is a view only: your markups stay as they are
A changed detail outlined on the overlay: the earlier note text in red and the new text in blue

Errors caught before they are built

Choose the plans to check together, set the most tokens it may use, and get a notification when it finishes.

  • Equipment that does not match its schedule
  • Sizes that do not add up and notes that contradict each other
  • Re-run after a revision to see what was fixed, what is still open and what is new
A plan check finding outlined in red on a mechanical floor plan

Answers that point at the drawing

Ask ZonePillar AI where something is, and the link opens the sheet with a box around it.

  • Links straight to the right sheet and page
  • A box around the exact spot the answer came from
  • Works in the full drawing viewer and the basic viewer
A drawing opened from an AI answer with a box around the duct heating coil control diagram

Where this fits in the platform.

The areas of the platform this kind of company uses most.

More guides and comparisons

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