Agent by Mastt vs Claude

Same intelligence. Built for the people who deliver construction projects.

Agent by Mastt runs on the same frontier models as Claude, ChatGPT and others. The difference is everything around it — purpose-built for construction, wired into your live project data, company knowledge, documents and email, with governed writes and outputs you can trust.

Book a Demo
Feature-by-feature
✓ Included
▲ Partial
✕ Not available
Capability
Claude
✦ Agent by Mastt
General-purpose chat, writing, research and analysis
✓
✓
Choice of frontier models across providers (Claude, ChatGPT and others)
✕Anthropic models only
✓
Personalised system profile — role, company type & sector for tailored construction work
✕
✓
Construction IP baked into skills, ready to run
✕Skills built from scratch
✓
Built-in construction project controls — registers, dashboards, documents
✕Local storage in spreadsheets
✓
Create new project workspaces with out-of-the-box controls
▲Static folder for one user's chat
✓
Per-project document context, files documents into the project
▲Manually curated per project
✓Automatic
Work saved into structured software, not loose files
✕Spreadsheets in a downloads folder
✓
Creates registers inside the project
✕
✓
Builds live dashboards bound to project data
✕
✓
Invite users, stakeholders, to projects
✕Workspace only
✓
Upload existing operating procedures, standard positions, to ground Agent in your business
✕
✓
Lessons learned from past projects accessible by all users
✕
✓
Upload your brand guidelines for on-brand outputs
✕
✓
One shared knowledge base for the whole team
▲Manually curated per project
✓
Upload and discuss documents in chat
✓
✓
Project-wide document store
✕
✓
Full-text + semantic search across PDFs, drawings and scans
✕
✓
Answers cite the exact source page
✕
✓
Chat interface
✓
✓
AI agent for work delegation
▲Routines
✓
Agent email address you forward work to
✕
✓
Create and schedule workflows for your agent to run
▲Routines
✓
Reusable AI skills
▲Each user builds their own
✓Packaged for construction
Branded Word / PDF / Excel from your templates
▲Re-supplied manually each time
✓
Every line traceable to the source meeting, register entry or document page
✕
✓
Numbers computed deterministically against live registers
✕Estimated in the model
✓
Versioned artefacts
✕
✓
Org- and project-scoped permissions on AI actions
✕
✓
Audit log of every AI-driven change
✕
✓
Confirm-gated writes into project data
✕
✓
Version rollback
✕
✓
Work stays in your system of record, not personal chat histories
✕
✓
Outlook / 365, SharePoint, Teams
▲Per-user connectors, self-maintained
✓Org-wide, set up once
Construction platforms — Aconex, Procore, Autodesk Construction Cloud
▲Confirm latest with Claude
✓
Native Mastt platform
✕
✓
Email → action item → register → report in one governed flow
✕
✓

Frequently Asked Questions

Does Mastt Agent work with the tools we already use?

Yes. Mastt Agent connects to the systems your projects already run on, including Outlook and Microsoft Teams, SharePoint, Slack, Xero and Procore, so it works from your live project data instead of copies pasted into a chat window. Those connections are governed and permissioned, and every action the Agent takes is logged, which a personal Claude or ChatGPT account cannot give you.

We already have a Claude or ChatGPT subscription. Why pay for Mastt Agent too?

Keep your subscription, they are great general assistants. Mastt Agent is the difference between an AI that writes well and an AI that already knows this project's RFI log, cost report, operating procedures and last month's board report, and can prove where every number came from. Your subscription buys intelligence. Mastt Agent adds construction domain fit, live project context, evidence and governance on top of it.

Can't we just set up a Claude Project with our documents and connectors?

You can, for one project, maintained by one person, current as of the last upload. Now multiply that across every project in your portfolio, keep the cost and risk registers live as they change, apply workspace and project permissions, add an audit trail of what the AI wrote, and make every output traceable to a source page. That is not a Project setting, it is a product, and Mastt Agent is that product, already built.

Couldn't our IT team build this on the Claude API?

They could start, but the build is not the API call. It is the registers data model, document indexing with page-level citations, deterministic calculations, permissions, audit logs, versioning, templated outputs, the email agent and the construction delivery skills. That is a multi-year roadmap plus permanent maintenance, with your team accountable when it breaks mid-dispute. Mastt Agent gives you all of it on day one, so your engineers stay on your own roadmap.

Isn't Mastt Agent just built on Claude?

No. Mastt Agent runs on the same frontier models as Claude and ChatGPT, and it stays multi-model on purpose, so you always get the best intelligence as models improve without being locked to one vendor. The product is everything the models cannot do alone. It is the workspace, registers, documents, company knowledge, evidence chain, governance and email agent that sit on top of them.

Is our data secure, and is it used to train AI models?

Your data stays inside your governed Mastt workspace, encrypted in transit and at rest, with workspace and project permissions and a full audit log of every AI-driven change. Nothing you put in is used to train AI models, because the providers do not train on your inputs or outputs, unlike a personal Claude or ChatGPT account where your chats may be. Your project data is not scattered across personal chat histories outside your system of record. For the detail, read our data privacy and cyber security pages.

Can we trust Mastt Agent's numbers?

Yes. Variation totals (change orders), extension of time day counts, cost report forecasts and payment certificate reconciliations are computed deterministically against your live registers, with the working shown. Nothing is estimated or rounded in the model's head, so the figures match your source data.

What happens if a number in a report is challenged later?

Every Mastt Agent output carries source references back to the exact meeting, register entry or document page behind each line. So a progress report, extension of time claim or payment certificate can be evidenced months later in a dispute, an audit or a client challenge, right down to where each figure came from. Book a demo to see the evidence trail on your own projects.

Take control of your next project