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U.S. edition

ArchX

Your AI agent for permits, bids and construction administration.

ArchX by FrontierX is the AI agent for architecture firms in the United States. You give it the task and the project files. It reads, measures, calculates, operates programs and writes the finished files – on your Mac or Windows PC.

Try free for 7 daysLive demo

7 days free · No payment details · Mac and Windows

Works with the files your firm already uses

  • PDF
  • Word
  • Excel
  • PowerPoint
  • DXF
  • IFC
  • Scans
  • Audio

You give the task. The agent does the work.

An AI agent opens your documents, uses the right tools and writes the files. You don’t explain every step.

Codes and permits

The code in force on your filing date.

ArchX resolves the authority having jurisdiction for each discipline, selects the code editions in force on your filing date, attaches the local amendments and screens ADA, FHA, ABA and HUD Section 504 separately. Your evidence goes into an editable permit review matrix.

Example projectCity of Houston, filing date October 11, 2026: the 2021 Houston Construction Code family with Houston amendments, in force since January 1, 2024, and a matrix of 10 review rows from zoning to HUD Section 504.

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Dimensions and quantities

Feet and inches. Exact to the fraction.

ArchX reads architectural dimensions like 12′-3½″ exactly, converts lengths, areas and volumes with exact factors and calculates takeoffs that keep every dimension, deduction and source sheet. Waste is added only at the rate you state.

Example project20′ × 10′ less a 3′ × 7′ opening: 179 sq ft net and 187.95 sq ft with the stated 5% waste. 12′-3½″ read as exactly 147½ inches, 3.7465 m.

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Costs and bids

Every bid on the same basis.

ArchX recalculates every bid and keeps the submitted total beside the checked sum, levels scope with the adjustments you approve and turns open exclusions into questions for the bidders. Cost plans in USD keep base, current, forecast and budget apart.

Example projectTwo bids checked and leveled: the complete bid ranked, the bid with open scope kept out of the ranking with a follow-up question to the bidder.

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Construction administration

RFIs, changes and pay apps. In order.

ArchX keeps your RFI, submittal and change logs from the actual records, drafts the outgoing response for your review and checks every pay application against the contract: approved change orders in, pending changes out, retainage at the rate in your agreement.

Example projectA pay application checked line by line: the approved contract sum with a pending change kept outside, 10% retainage on work completed and stored, and the current amount due by arithmetic.

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Phases and specifications

Every deliverable. Every spec section.

ArchX checks your phase deliverables against the scope of services in your agreement, audits the project manual for unresolved options, editor’s notes and missing cross-references and starts a living submittal register from your specifications.

Example projectProject manual and schematic deliverables checked: an open owner selection, a referenced section missing from the manual, a shop drawing submittal and a drawing index without a file, each with its source line.

Explore the workflow →

Files in. Finished files out.

ArchX works in your project folder. It reads what is there, does the work and saves editable files you can open, change and send.

The task, as ArchX starts it

“Prepare a code and permit review for this project. First establish the city, state or territory, authority having jurisdiction (AHJ), project scope and review date. Verify the adopted code editions, local amendments and permit requirements against current official sources …”

What ArchX wrote

  • XLSXPermit review matrix, 10 rows from zoning to Section 504
  • DOCXThe same matrix on Letter landscape, editable
  • JSONThe full jurisdiction result with every source

ArchX U.S. edition · example project with fictitious data, City of Houston, Texas · Oct 11, 2026

Page 1 of the permit review matrix written by ArchX for the Houston example: discipline, requirement, authority, source and version, evidence, status, action and ownerArchX with a U.S. project: the capabilities Code and permit review, Quantities and cost planning, Bid leveling, Construction administration, Drawing and specification review, documents, minutes, web research and images
In front: ArchX with a U.S. project. Behind: page 1 of the permit review matrix.
6AHJs

with dated code adoption built in: City of Los Angeles, unincorporated Miami-Dade County, New York City, New York State outside NYC, Houston, Austin. Every other AHJ from the official sources you supply.

ArchX U.S. edition · Codes and permits

4overlays

federal regimes screened apart from the local permit: ADA, FHA, ABA, HUD Section 504.

ArchX U.S. edition · Codes and permits

14files

editable Excel and Word files from one run of all five U.S. workflows on the example project: 8 workbooks, 6 Word documents, every one reopened and checked.

ArchX U.S. edition · Example project · Oct 11, 2026

It knows how U.S. projects run.

Specialist knowledge for U.S. practice is built in. Every code fact names its official source and the date it was read; your agreement and your documents decide the rest.

Code adoption

The edition on your filing date.

A model code is law only once adopted. ArchX selects by AHJ, filing date and transition rules, with local amendments kept separate.

Federal overlays

ADA, FHA, ABA, Section 504.

Screened apart from the local permit, with a precise question wherever a project fact is missing.

Land use

Zoning apart from building.

Houston has no zoning and still reviews plats, setbacks, parking and floodplain. ArchX keeps that review open.

Sources

Dated official sources.

Every code fact carries its official source, the date it was read and the date to check it again.

Units

The international foot.

Exactly 0.3048 m, exact fractions down to 1/1024 inch. A survey foot only with its datum.

Takeoffs

Gross, net, waste.

Every dimension, deduction and count with its sheet. Waste only at the rate you state.

Bids

Submitted, checked, leveled.

Three totals per bid, approved adjustments only and a question for every open scope.

Cost plans

Base, current, forecast, budget.

Separate totals, rounding to the cent per line, contingency and escalation only with a stated basis.

Pay applications

Approved changes only.

Pending changes stay outside the contract sum; retainage at the rate and basis in your agreement.

RFIs and submittals

An RFI is not a change order.

A response never authorizes cost or time; a submittal status has the effect your contract gives it.

Specifications

Your project manual, as written.

CSI numbers and titles stay as supplied; open options and missing references flagged with the line.

Documents

Letter size. U.S. English.

Word and Excel in en-US with U.S. dates and numbers, saved as new revisions next to the raw source.

An agent, not a chatbot.

ArchX works on your computer the way your team does: it opens programs, uses the browser, looks things up and writes the files.

On your computer

  • Operates your programs with computer control: clicks, types, scrolls and uses the menus.
  • Opens web pages in its own Chrome or Edge window, reads them, clicks and fills in forms.
  • Researches products, regulations and background, and gives the sources.
  • Finds what you agreed in earlier projects and conversations.

From your words

  • Takes dictation and meeting recordings; speech recognition runs on your computer.
  • Turns notes into minutes with decisions, actions, owners and dates.
  • Creates visualizations from a description and edits images precisely, with your ChatGPT account.
  • Writes reports, letters and tables as Word, PDF or Excel.

Three steps to the first task.

  1. 01

    Download ArchX

    For Mac or Windows. The 7-day trial starts by itself: no form, no payment details.

  2. 02

    Connect your AI

    Your ChatGPT account, Plus or higher, or your own API key from OpenAI, Anthropic, Google, Mistral or xAI.

  3. 03

    Give it the first task

    Set the project’s country to United States, choose the project folder and say in your own words what you need. Check the result and tell ArchX what to change.

Get ArchX.

Download ArchX and try it free for 7 days. No form, no payment details.

For Mac

Mac with Apple silicon, macOS 13 or later. For a Mac with an Intel processor: download the Intel version.

Download for Mac

For Windows

Windows (64-bit). Install it on your PC and sign in with your AI provider.

Download for Windows

Each person needs a ChatGPT account, Plus or higher, or an API key from OpenAI, Anthropic, Google, Mistral or xAI. What you need to start

$2,290a year

$2,290 a year or $229 a month for your firm, including the first person. Each additional person $570 a year or $57 a month. Prices in U.S. dollars, excluding any applicable taxes.

See pricing

The license terms and the service privacy notice of the ArchX service apply to ArchX.

Asked briefly.

What is ArchX?

ArchX is the AI agent for architecture firms in the United States: a desktop app for Mac and Windows that opens the drawings and documents in your project folder and does the work. It sets the code baseline for your AHJ and filing date, calculates feet and inches exactly, levels bids, keeps RFIs and pay applications in order and audits project manuals, in U.S. English on Letter size.

Which AI does ArchX work with?

Each person connects their own ChatGPT account, Plus or higher, or an API key from OpenAI, Anthropic, Google, Mistral or xAI. You can switch provider at any time; projects, conversations and results stay.

Where do our drawings and documents go?

Your files stay in your project folder; ArchX keeps no project server of its own. What a task needs goes from your computer straight to the AI provider you connected. An API key stays in the key store of your computer: the Keychain on a Mac, Credential Manager on Windows. Your data

What does ArchX cost?

$2,290 a year or $229 a month for your firm, including the first person. Each additional person $570 a year or $57 a month. Every person starts with 7 days free, without payment details. AI usage runs through each person’s own ChatGPT account or API key. Pricing

Does ArchX include code books or AIA documents?

No. ArchX works from the official adoption sources and from your own project documents: your agreement, your specifications, your bids. Licensed code text, AIA forms and CSI lists are not bundled; section numbers stay exactly as your documents supply them.

Which files does ArchX write?

The U.S. workflows write Excel workbooks and Word documents on Letter size in U.S. English, each as a new revision next to the raw source data, so earlier results stay. Reports, letters and tables also come as PDF.

ArchX in your firm.

For Mac and Windows. With your ChatGPT account or API key.

Try free for 7 daysLive demo

7 days free · No payment details · Mac and Windows