For subcontractors

Stop reading schedules manually. Understand them with GanttAI.

Whatever the GC sent, PDF, MPP, XER or Excel, opens as a live schedule you can search, filter and zoom. GanttAI finds the activities in your scope, manloads them, and answers in plain English. Ask for a three-week look-ahead and a ready-to-use Excel lands in the chat.

No more surprises Insights in 30 min Credit-based
Rev 7 · superseded out of seq? dates shifted? crew stacking? whose scope? deleted? Page 1 of 300
What you get

Built for specialty contractors.

You didn’t write the schedule, but you’re accountable to it. These are the things you actually need.

Review

The GC’s schedule opens up, with the activities in your scope pulled out and manloaded, so you see the crew behind the dates.

How review works →

Compare

Any two revisions side by side, showing every date, duration, logic and sequence change in your scope, and what it does to your crew.

How compare works →

GanttAI Agent

Ask anything about the schedule in plain English and get an answer you can act on, with the working file to go with it.

What you can ask →

How it works

From their schedule to your answer.

One workflow, end to end. Unlock the schedule you were sent, find out what the next revision did to it, and ask it whatever you need to know.

ganttai / review
drywall My scope Level 2 Week
Metal stud framing · L2
Drywall hang · L2
Tape & finish · L2
ACT grid · L2
Insulation & blocking · L2
Mech. rough-in · L2
Electrical rough-in · L2
Ceiling grid · L3
Fire stopping · L2
Drywall hang · L3
Doors & hardware
Tape & finish · L3
Flooring
Final inspection
01  Review

Their schedule. Your plan.

Theirs is built to run the whole job. Yours is the part you are on the hook for, with the crew behind it.

01

Unlock the file

PDF, MPP, XER or Excel, straight from the GC. It opens as a live schedule instead of a document, however messy the print was.

02

Work it like your own

Search any activity, filter to the trades you care about, zoom the timeline in and out. The data stops being locked in a printout.

03

Find your scope

AI picks out the activities that belong to you and manloads them, so you can see the crew requirement sitting behind the dates.

Export it as MPP, XER, XML, Excel or PDF.

02  Compare

Every change in the new revision, in your scope.

Revision 7 landed in your inbox this morning. Know what it did to your dates and your crew in minutes.

01

Pick two revisions

Any two schedules from the same job. GanttAI lines the activities up itself, with no mapping exercise.

02

See every change

Dates, durations, logic and sequence, activity by activity. Filter down to a single scope and read only what affects you.

03

See the crew impact, then send it

Resource changes come back as a heat map of who’s needed, and when. The whole report is a link you can send to the GC, your PM or your foreman. They don’t need an account.

ganttai / compare
Activities changed3015
Peak crew variance120%
Duration change+10d
Stacking incidents156
BaselineRevision 7
Metal stud framing
Drywall hang
Mech. rough-in
Electrical rough-in
Insulation
Tape & finish
Ceiling grid
Fire stopping
ACT grid
Crew required
234610432
Framing +10d Mech +6d Elec −4d Logic ×2
ganttai / agent
My scope Rev 8 Levels 2–4
Rev 8 just landed. What changed for me?
Nine activities in your scope moved. Drywall hang slips 6 days, ceiling grid pulls forward 3, and your peak week goes from 10 people to 14.
Can I hold the crew flat at 8?
Only if tape and finish starts four days later. It has 6 days of float, so the finish date does not move.
Send my foreman a three-week look-ahead
14 activities, by level and by day.XLS look-ahead.xlsx
Drywall +6d Ceiling −3d Crew held at 8
03  GanttAI · Agent

It has already read the revision.

You do not go looking for what changed. You ask, in the same words you would use on the phone.

01

Ask in plain English

No filters to build and no query language to learn. Dates, crew, sequence, float: if the schedule knows it, you can just ask for it.

02

Get deep insights

It knows the schedule you just reviewed. Ask questions about resources, about tasks in your scope, about challenges with the proposed dates, or even stacking, and get insights in seconds.

03

Go beyond the chat

Ask for look-aheads or summaries and get ready-to-go Excel files. No more manually filtering and struggling with tools to get the data you need.

Wondering what it would catch on your project? Send us two revisions and find out.

Start free trial
Why it pays

Taking back what matters

The schedule analysis still gets done. It just stops eating your week.

20hrsSaved every month reviewing & comparing
100%Of schedule changes caught
10×Return on investment in month one
30minFrom unreadable file to answers

Time back on site

The two days a month spent red-lining a printout go back to running work. Every change in your scope surfaces the day the revision lands, not the week your crew shows up to a wall that isn’t ready.

Better planning

Manloading turns dates into headcount. You see the peak before you promise it, and you see it move the moment the next revision lands.

Fewer disputes

When the change is documented the day it lands, the conversation is about the schedule rather than about who remembers what. The report is the record.

From the field

Specialty subs love it.

“We were looking at hiring a full-time person for schedule analysis before GanttAI.”
DCDirector of Contracts & DisputesTop 5 U.S. contractor
“You guys are onto something big! It’s a huge problem and the solution provides a lot of value.”
PMSenior Project ManagerNational commercial contractor
“We’ve been receiving great feedback on GanttAI… expecting a lot more users soon.”
DRDirectorWalls & ceiling contractor
“This is such a big pain point for us, feels like we hit the jackpot with GanttAI.”
VPVP ConstructionAcoustic contractor

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Q&A

Questions from subcontractors

Is our data private?

Fully private, never exposed. Your schedules, drawings and contracts stay in your workspace, are never pooled with other customers, and never train anyone else’s model.

How reliable are the findings?

Compare is >99% accurate and finds every change. Review catches 80–90% of your scope on a schedule it has never seen, and it is trainable. By the second revision of that schedule it is at 100%.

What file types can we upload?

PDF schedule prints, including the messy ones, plus Microsoft Project (.MPP), Primavera (.XER, .XML) and Excel.

What can we export?

Excel, Primavera P6, Microsoft Project and PDF. Look-aheads come straight out of the chat as a ready-to-use Excel file.

Does it need the GC’s logic to work?

No. Without logic you still get a live, searchable schedule, your scope pulled out, manloading and full comparisons. With logic you also get dependency questions, what your work is waiting on, plus the 36 schedule checks.

Can we compare more than two revisions?

Yes. Pick any schedule as your baseline and compare any later revision against it, as many times as the job throws them at you.

How does pricing work?

GanttAI is a credit-based platform. You spend credits per review or comparison run, so a slow month costs less than a busy one.

Free compare report

Still not convinced? We got you.

Send us your schedules for a free comparison report. An old revision and a new one, and we’ll run the comparison ourselves. No trial, no card.

Works on MPP, XER, XML, Excel & PDF