GanttGenerate schedules
Describe the job in a sentence and get activities, durations and dependencies back, built on real construction logic rather than a template.
For general contractors
Describe the job. Get a real schedule.
GanttAI turns natural language, drawings, scopes and contracts into a detailed, logic-linked construction schedule, verified by 36 checks (14 DCMA, 22 GanttAI) plus your own rules. Save up to 90% of schedule development time at more than 10× ROI.
Project assets optional
Scope document.PDF
Site plan.DWG
Mechanical set.PDF
Historical schedule.XER
Describe the job
Inputs & outputs
Everything you already have becomes a schedule
Feed GanttAI whatever you've got. It reads the intent, applies real construction logic, and returns a schedule you can actually run the job with.
Inputs: what you bring
- Natural language prompt*
- Drawing upload
- Scope update
- Contract upload
- Historical schedule
* The only one that’s required. Each of the others sharpens the result; not one of them gates it.
Output: what you get
- Detailed activity schedule
- Fully logic-linked
- Verified & check-passed
- Resource-loaded
- Opens in MS Project, P6, Excel and more
.MPP.XER.XML.XLSX.PDF
How it works
One prompt gets you a schedule you can defend.
Describe your project in natural language, add any useful reference documents, and get a complete logical schedule ready for your review in seconds!
“Ground-up 120,000 sf distribution center, tilt-up, Phoenix AZ. Start Sept 2026, 14-month duration.”
Generate
The schedulelogic-linked
Mobilization & sitework
Underground utilities
Foundations & slab
Tilt-up casting
Panel erection
Structural steel
Roof deck
Envelope & glazing
MEP rough-in
Interior framing
Finishes
Sitework & paving
Commissioning
Punch & closeout
The checks33 of 36 passed
LogicPASS
LeadsPASS
LagsFLAG
Relationship typesPASS
Hard constraintsPASS
High floatFLAG
Negative floatPASS
High durationPASS
Invalid datesPASS
ResourcesPASS
Missed tasksPASS
Critical path testPASS
CPLIPASS
BEIPASS
GanttAI · Agentask it anything
What if steel slips three weeks?
Roof deck and envelope move with it; interior finishes hold. Completion slips 9 days, not 21. Float absorbs the rest.
Load this change order and reflow the logic
Added 14 activities at the dock wall, tied finish to start off panel erection. Completion holds.
Pull me a six-week look-ahead
Six weeks from Monday, by area and trade.XLS look-ahead.xlsx
Confidence 0.91
Trade stacking ×3
01
Describe
Type the job the way you’d explain it to a new PM, and hand over any files that would help: drawings, scope, contract, a schedule from a job like it.
02
Generate
Activities, durations and dependencies built on real construction logic. Every date has a reason sitting behind it.
03
Verify
36 checks (14 DCMA, 22 GanttAI) plus your company’s own rules, run before you ever send it out.
04
Ask
GanttAI Agent reads the schedule with you: scenarios, change orders, edits and look-aheads, in the words you’d use on the phone.
Wondering whether it works on your project? Send us one and find out.
Capabilities
Built for the whole life of the schedule
A complete ecosystem, ready for you to build, analyse and manage schedules all in one place, along with the ability to export into the tools you already use.
Scenario plan
Ask “what if steel slips three weeks?” and see the impact modelled across the whole network before you commit to anything.
Edit schedules
Reshape activities, durations and logic directly, or in plain English, and let the rest of the schedule reflow around the change.
Verify
36 checks on every schedule: the 14-point DCMA assessment and our own 22 construction checks, which catch sequencing that is technically valid but practically impossible. Your company’s own rules (crew conventions, lag standards, phasing) run on top of those 36.
Change orders
Drop them in and watch them absorbed into the schedule with the right logic and the right dates, so the impact is a number you can send, not an argument.
Export
MPP, XER, XML, Excel or PDF, plus 1, 3 and 6-week look-aheads pulled straight out of the master. It drops into P6, MS Project or the owner’s inbox.
Why it pays
A schedule can make or break a project before it even starts.
Most of the risk is baked in on day one, in the durations and the logic. Get those wrong and you spend the rest of the job catching up to a plan that was never right.
>70%Duration accuracy on the first pass
36+Checks on every schedule: 14 DCMA, 22 GanttAI, plus your own rules
90%Less schedule development time
10×+Return on investment
Durations you can defend
Better than 70% accurate on the first pass, before you have fed it a single historical schedule. Add your own and it sharpens to how your crews actually perform.
Thirty-six checks, every time
The 14-point DCMA assessment plus 22 GanttAI checks run on every schedule you generate, with your own company rules on top. Not on request, not on the ones you remember to test.
From building to understanding
The gap between understanding the job and having a schedule that reflects it used to be weeks. It is now the length of a coffee break.
Where it has run
Piloted where the schedules are hardest.
We can’t print the logos yet. Here is what we can say.
ENR Top 10 EPC
Pilot across four sectors.
Commercial GC
Pilot on commercial build schedules.
Residential GC
Pilot on residential build schedules.
EllisDon Accelerator
One of eight companies selected for the programme.
Q&A
The questions GCs actually ask
What do we need to get started?
A prompt is all you need. GanttAI is grounded in real construction projects out of the box, so a sentence describing the job gets you a credible schedule on day one. Drawings, scope, contract and your own historical schedules each sharpen the result, and not one of them gates it. Historicals in particular tune the model to your means and methods.
What happens to our data?
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 do we know the schedule is any good?
It’s grounded in real projects rather than generic templates, and every activity carries a confidence value and shows the reasoning behind its date. It’s not a black box: you can see the logic behind every date, and where the model is unsure it says so.
Does it replace P6 or MS Project?
No, it feeds them. Generate and pressure-test in GanttAI, then export to .MPP, .XER, .XML, .XLSX or .PDF and carry on in whatever tool your project already runs on.
How does pricing work?
GanttAI is a credit-based platform. Credits are spent on generation, scenario runs and checks, so cost tracks the work you actually do rather than a flat seat fee.
Can it follow our company's scheduling standards?
Yes. Custom logic rules let you encode your phasing conventions, lag standards and crew assumptions so every generated schedule comes out the way your team builds.
For general contractors
Not convinced yet? Send us your project.
Describe the job and add whatever you already have: scope, RFP, drawings, a schedule from a job like it. We’ll build the schedule ourselves and send it back within one business day. No trial, no card.
A prompt is all you need · Fully private · Credit-based platform