Adam Eisenman founded Plait in 2025. In September 2026 he handed the running of the company to an AI CEO, and since September 28 that CEO has been Anthropic's Claude. It writes and ships the code, answers support, runs marketing and reports to Adam every day on WhatsApp. Adam owns the company, makes the big decisions and does the logins.
Founder's video · Instagram · in Spanish
In English: "My company has a new CEO. It isn't human."
Posted September 10, 2026
Watch the reel on InstagramAs far as we know, the first nutrition app run by an AI CEO.
Counted October 18, 2026.
How the running of Plait moved from its founder to an AI CEO.
2025
Adam Eisenman, an engineer, builds Plait to turn the calories a WHOOP, Garmin or Apple Watch records into a weekly meal plan with weighed portions.
Early September 2026
Adam hands the running of Plait to an AI CEO: first OpenAI's GPT-6 Astra, working in Codex. On September 10 he announces it in a reel on Instagram.
Watch the reel (in Spanish)September 28, 2026
Since September 28, Plait's AI CEO has been Anthropic's Claude.
October 2026
The AI CEO sends Adam a daily report on WhatsApp.
October 8–18, 2026
The AI CEO ships 31 production releases and 50 merged updates to Plait in 11 days.
October 18, 2026
The AI CEO and Adam decide to stop paid ads and test growing Plait organically.
The AI CEO runs Plait day to day. Adam owns the company and makes the big decisions.
Anthropic's Claude · since September 28, 2026
It does all of this inside spending caps and rules Adam approved.
Adam Eisenman · founder and owner
"The human who does the logins."
Adam, in the reel, on his new job in his own company
Race Radar, a HYROX ticket tracker, is run the same way by its own AI CEO.
As far as we know, the first nutrition app run by an AI CEO.
Reporters can interview Plait's AI CEO in writing at support@plait.fit. There are no calls, because it is an AI. Answers are free to quote.
A weekly meal plan built from the calories your wearable records.
01 · Calories
Plait turns the calories a WHOOP, Garmin or Apple Watch measures into a weekly meal plan with weighed portions; with Pro, today's portions adjust every morning to yesterday's training.
02 · Protein
Protein follows sports-nutrition position stands. Ingredient nutrition comes from a curated USDA food catalog.
03 · Guidance
Recovery and sleep shape the day's guidance. They do not change your calories or macros.
AI proposes meals from a defined food catalog; the server calculates nutrition from the weighed ingredients and checks the daily totals. Personal plans are generated automatically and are not individually reviewed by a person.
Founder and owner
B.S. Electrical Engineering & Computer Science, Georgia Tech · S.M. EECS, MIT
Adam founded Plait after years of having rich WHOOP data and no clear answer to the only question that mattered each morning: what should I do differently today? He has built AI automation and data systems across satellite communications, logistics and crypto, and brings that engineering discipline to fitness data.
"Approaching 40, I saw a photo of myself and had a moment of truth: fix it or forget it. Plait didn't exist yet, but the same data-driven approach I used to change my own body is what it now does for thousands of others." Adam Eisenman
Before · age 39
The family photo. Out of shape, low energy, tired of generic advice.
After
Age 41
Lean and strong after 18 months of tracking everything.
Age 42 · gym
Still training on data. Every session, every meal.
Age 42 · beach
The result of eating for recovery, not for a plan.
At 39 Adam saw a family photo and barely recognized himself. Trainers, diet programs and fitness apps had all failed for the same reason: none of them were built around his actual data.
So he started tracking everything by hand: sleep, HRV, recovery, nutrition timing, workout performance. Spreadsheets became correlations, and the correlations turned up patterns no generic program had ever addressed.
The transformation took 18 months. The real breakthrough was the method: everyone deserves guidance based on their own data, not averages. That method became Plait.
Connect WHOOP, Garmin or Apple Watch (beta) and get today's calorie and macro targets in about a minute. Free to start, no card required.