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The friendliest rivalry in AI

Mario vs Dario.

Two men. One future of work. Very different GPU budgets.

Mario Costanz
Mario Costanz
Founder, Workforce AI · New York
vs
DA
Not pictured. Lawyer's orders.
Dario Amodei
CEO of an AI company in San Francisco
The friendliest rivalry in AI

Mario vs Dario.

Two men. One future of work.
Very different GPU budgets.

Mario Costanz
Mario Costanz
Founder, Workforce AI
DA
Not pictured. Lawyer's orders.
Dario Amodei
CEO of an AI company
The tale of the tape

Two very different job descriptions.

Mario · New York
Dario · San Francisco
Builds AI employees for 1-20 person firms
·
Builds frontier models
Raised a family in New York
·
Raised billions
Thinks about your to-do list
·
Thinks about AGI
Writes your follow-up emails
·
Writes 15,000-word essays
Compute measured in "enough"
·
Compute measured in datacenters
Takes the 6 train
·
Keynotes Davos
Plans for tax season
·
Plans for superintelligence
Both men are undefeated. Neither has agreed to fight.
The tale of the tape

Two very different job descriptions.

MARIO  Builds AI employees for 1-20 person firms
DARIO  Builds frontier models
MARIO  Raised a family in New York
DARIO  Raised billions
MARIO  Thinks about your to-do list
DARIO  Thinks about AGI
MARIO  Writes your follow-up emails
DARIO  Writes 15,000-word essays
MARIO  Compute measured in "enough"
DARIO  Compute measured in datacenters
MARIO  Takes the 6 train
DARIO  Keynotes Davos
MARIO  Plans for tax season
DARIO  Plans for superintelligence
Both men are undefeated. Neither has agreed to fight.
The quote ledger

Dario predicts it. Mario ships it.

Real quotes, every one linked to the source.

"We, as the producers of this technology, have a duty and an obligation to be honest about what is coming."

Dario Amodei · Axios · May 2025 ↗
Meanwhile at Workforce

He's right, so here's our honest version: an AI employee that drafts your email, sits in your meetings, runs recurring tasks in the tools you already use, and chases follow-ups for small firms. That's it. That's the product.

"AI is moving faster than all these previous technologies."

Dario Amodei · Fortune · May 2026 ↗
Meanwhile at Workforce

Small firms don't have a change-management department. So we made this feel like hiring, not an IT project: a name, a job description, and it shows up to the next meeting, at about 5% of the cost of a hire.

"If you automate 90% of the job, then everyone does the 10% of the job. And the 10% kind of expands to be 100% of what people do and kind of 10xs their productivity."

Dario Amodei · Fortune · May 2026 ↗
Meanwhile at Workforce

The 10% that's left is judgment and relationships. That was always the owner's real job. We built the other 90: the inbox, the meeting notes, the recurring tasks, the follow-ups.

The quote ledger

Dario predicts it.
Mario ships it.

Real quotes, every one linked to the source.

"We, as the producers of this technology, have a duty and an obligation to be honest about what is coming."

Dario Amodei · Axios · May 2025 ↗
Meanwhile at Workforce

He's right, so here's our honest version: an AI employee that drafts your email, sits in your meetings, runs recurring tasks in the tools you already use, and chases follow-ups for small firms. That's it. That's the product.

"AI is moving faster than all these previous technologies."

Dario Amodei · Fortune · May 2026 ↗
Meanwhile at Workforce

Small firms don't have a change-management department. So we made this feel like hiring, not an IT project: a name, a job description, and it shows up to the next meeting, at about 5% of the cost of a hire.

"If you automate 90% of the job, then everyone does the 10% of the job. And the 10% kind of expands to be 100% of what people do and kind of 10xs their productivity."

Dario Amodei · Fortune · May 2026 ↗
Meanwhile at Workforce

The 10% that's left is judgment and relationships. That was always the owner's real job. We built the other 90: the inbox, the meeting notes, the recurring tasks, the follow-ups.

Meanwhile, in our dashboard

So we hired a Dario.

Ours writes long memos too. Then it answers the email about them.

Create New Job TitleREAL SCREEN
Avatar
Dario, an AI employee
+
Portrait session scheduled.
He asked to submit a memo instead.
Name
Dario
Job Title
AI Employee
Personality
Thoughtful. Writes long memos.
Use Case / Task Type
Creating Reports
Job Description
Answer email. Take meeting notes. Run the recurring tasks. Chase every follow-up. When in doubt, write a long memo about it.
PDFcollected-memos-vol-1.pdf · 214 pages
dario@joinworkforce.ai
Please welcome Dario to the team. No, not that one. Ours answers email.
Meanwhile, in our dashboard

So we hired a Dario.

Ours writes long memos too.
Then it answers the email about them.

Create New Job TitleREAL SCREEN
Avatar
Dario, an AI employee
+
Portrait session scheduled. He asked to submit a memo instead.
Name
Dario
Job Title
AI Employee
Personality
Thoughtful. Writes long memos.
Job Description
Answer email. Take meeting notes. Run the recurring tasks. Chase every follow-up. When in doubt, write a long memo about it.
dario@joinworkforce.ai
Please welcome Dario to the team.
No, not that one. Ours answers email.
The open letter

An offer he can easily refuse.

Dear Dario,

You don't know me. Honestly, that's the most on-brand thing about this letter.

You run one of the most important AI companies in the world. I run a company that teaches AI to answer email for 1-20 person accounting firms. You worry about the fate of humanity. I worry about whether a mortgage broker in Queens sent his follow-up before Thursday.

Here's the thing though: we're betting the same way. You keep telling the world that AI is about to change how everyone works. We're what that looks like at street level, one small firm at a time.

So, an offer. Anthropic gets an AI employee from us, free, for as long as you want it. It joins your meetings, drafts your replies in your voice, runs your recurring tasks with approval, and chases every follow-up. Even frontier labs drop follow-ups. No judgment. Ours would know.

If it gives your team back one hour a week, that's one more hour of frontier research for everybody. We'll take that trade every time.

With enormous respect and a much smaller GPU budget,

Mario Costanz
Mario Costanz
Founder & CEO, Workforce AI
P.S. The offer starts with the free email drafter. It would have caught the follow-up on this letter, too.
Not Dario? Same offer, start freeBook a demo
The open letter

An offer he can easily refuse.

Dear Dario,

You don't know me. Honestly, that's the most on-brand thing about this letter.

You run one of the most important AI companies in the world. I run a company that teaches AI to answer email for 1-20 person accounting firms. You worry about the fate of humanity. I worry about whether a mortgage broker in Queens sent his follow-up before Thursday.

Here's the thing though: we're betting the same way. You keep telling the world that AI is about to change how everyone works. We're what that looks like at street level, one small firm at a time.

So, an offer. Anthropic gets an AI employee from us, free, for as long as you want it. It joins your meetings, drafts your replies in your voice, runs your recurring tasks with approval, and chases every follow-up. Even frontier labs drop follow-ups. No judgment. Ours would know.

If it gives your team back one hour a week, that's one more hour of frontier research for everybody. We'll take that trade every time.

With enormous respect and a much smaller GPU budget,

Mario Costanz
Mario Costanz
Founder & CEO, Workforce AI
P.S. The offer starts with the free email drafter. It would have caught the follow-up on this letter, too.
Not Dario? Same offer, start free
Trusted by growing firms in agencies, advisory, staffing and more
Already putting an AI employee to work
DDRepsBear MapleD.C. RanieriSabre IntegratedWattsNextPanca BKAdria ManagementTaxaroo
8 hours a week backFollow-ups handled for DDReps
40+ calls written upNotes and next steps for Bear Maple
Replies already writtenDrafted in his voice for D.C. Ranieri

"It gives me back about 8 hours a week. The follow-ups go out without me, and I only step in when something needs a person."

BP
Brian Podnos
President, DDReps
The Mario side of the argument

Meet the future of work. It answers email.

Start free with the email drafter, or book a walkthrough with a real person. Usually Mario.

Start free with the email drafter. No card required. Add a card to try all of Pro, cancel anytime, no surprise charge.
The Mario side of the argument

Meet the future of work. It answers email.

Start free with the email drafter, or book a walkthrough with a real person. Usually Mario.

Start freeBook a demo
Start free with the email drafter. No card required. Add a card to try all of Pro, cancel anytime, no surprise charge.
No affiliation with Anthropic. All respect. Any resemblance to frontier-lab CEOs, living or artificial, is coincidental.
Free email drafter
No card · book a quick demo
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