Marc Kleinmann
Marc Kleinmann laughing with a coffee in a studio full of architecture modelsAI-assisted. Human-directed.
Founder of Praxis · New York

I build AI assistants for businesses.

Set up in days. Run by you.

30 yrs putting new tools to work
Since 2019 using AI in my work
5 companies I started
Work with me →See my work ↓
Work
Charles SchwabTRGDark Hollow on NetflixConsole and AssociatesWyldBlueM Rental922 DragonNeurolimitsSkyship FilmsDarktower
My work

Things I've built.

An example daily breach report in Slack, with new breach notices sorted by priorityExample report · made-up companies
AI assistant · A law firm

Daily data breach scan

12 government breach-notice sites, checked every day. Review time went from 2 hours to 15 minutes.

An example morning briefing email on a phone, with the top 3 tasks, today's calendar and the inbox countMade-up example
AI assistant · My own business

Morning briefing

Six sources, one briefing before the workday starts. Morning catch-up went from 30 to 60 minutes to 3.

An industrial room set with high tables for a corporate drinks eventAI-assisted. Human-directed.
Product images · An event-rental shop

Party packages

10 package images, made from the shop's own product photos.

A still from Dark Hollow: a mine entrance in a forest
Feature film · Effects

Dark Hollow

Virtual production and AI effects. Released in theaters and on Netflix, Apple TV and Amazon.

An architectural visualization of a modern house among treesAI-assisted. Human-directed.
My app · Architecture

realtySTUDIO

An app for architectural and interior visualization.

$2.6M seedBacked by Builders FirstSource
Construction-tech startup

VIRTUALhaus

A 3D marketplace for building products. The 2019 floor-plan-to-3D prototype brought AI into my work.

Work with me

Learn, build, run. I'm with you for all three.

Marc Kleinmann smiling, in black glasses
Learn · praxismanual.com

Learn to run AI assistants in your business.

The Company Builder's Manual

Free

One way to use AI, every week.

Group class

$1,295

Four weeks, live. You leave with one workflow running in your business, or I refund your seat.

Training for your team

From $3,500

Private, built on your team's own work.

Not sure where AI fits in your business?

Live Q&A

Live

Every Wednesday, 12:00 to 12:30 ET. Bring your questions about AI assistants.

  • 30 minutes
  • Live on video
  • Free
Save my free seat →
AI assistant · Oak & Ivy Landscaping
New lead at 9:42 pm: patio and planting, about 600 sq ft.
I sent your availability and booked a site visit for Tuesday at 10:00. Details are in your calendar.
Great. Send them the patio photos from the Miller job too.
Sent, with the before and after. They replied: "Perfect, see you Tuesday."
While you were off the clock · Example business
Done for you · praxisatwork.com

I set up your AI assistant.

Ready-made assistant

$2,495

Installed out of the box. No discovery, no custom work.

Assistant made for you

$4,950

Fitted to how your business works.

Custom projects

By quote

Priced after one call.

After setup, a monthly plan from $395 keeps your AI assistant running.

Start a conversation →
Marc laughing with two people at a table in a brick loft
AI-assisted. Human-directed.
About me

New tools, put to work.

I started in visual effects in Dallas in 1996. Then I ran Bauhaus, a design-build firm, for 15 years. In 2018 I founded VIRTUALhaus, a 3D marketplace for building products, and raised a $2.6M seed. That's where I first worked with AI, in 2019, and generative AI caught my interest. Since then I've built applications, ad campaigns and visual effects shots with AI.

Today I build AI assistants for businesses and teach your team to run them.

Ask me anything →