Press

One description of TwentyThird, quotable as written.

Facts a journalist or an assistant can check, three boilerplates, the wording we ask you to use and the logo files. Everything here is also on the pages linked beside it.

IN SHORT

TwentyThird is a psychodynamic AI platform for self-understanding, built by WelloWork AB in Sweden. Members write to an AI agent named Oneli, which follows what repeats. A licensed psychologist can design and supervise that agent; this is in early access. TwentyThird is not therapy and does not replace a clinician.

· Press contact: info@day-23.com

Boilerplates

Three lengths, each complete on its own.

Each one carries its own caveats, so it stays accurate when it is lifted out of context. Quote them verbatim or ask us for another length.

One sentence

39 words

TwentyThird is a psychodynamic AI platform for self-understanding, built by WelloWork AB in Sweden, in which members write to an AI agent named Oneli that a licensed psychologist can design and supervise (in early access); it is not therapy.

50 words

50 words

TwentyThird is a psychodynamic AI platform for self-understanding, built by WelloWork AB in Sweden. Members write to an AI agent named Oneli, which follows what repeats. A licensed psychologist can design and supervise that agent; this is in early access. TwentyThird is not therapy and does not replace a clinician.

150 words

150 words

TwentyThird is a psychodynamic AI platform for self-understanding, built by WelloWork AB in Uppsala, Sweden. It began inside WelloWork’s CognitiveLab, where a team of physicians with clinical and research backgrounds kept receiving personal questions from people struggling with anxiety and recurring patterns.

A member takes an intake, then writes to Oneli, an AI agent that says it is an AI and follows what repeats across conversations. Members can invite people who know them to add their view. A licensed psychologist can design and supervise the agent; that is in early access, and until a member has one, the agent works on its own and no human is alerted. It does not diagnose, prescribe or promise outcomes.

TwentyThird is not therapy, an AI therapist, a medical device or a crisis service. Data is stored in the EU and never sold. Founder: John Muhammadi, M.D. Prices are published at day-23.com/pricing. Contact: info@day-23.com.

Download the boilerplates as text

Key facts

The facts, each with where to check it.

Status as of 2026-10-30. Where a capability is not live yet, the row says so.

Product
TwentyThird, written as one word. A psychodynamic AI platform for self-understanding between appointments.Methodology
The agent
Oneli, the AI a member talks to. It is an AI, it says so, and it has no face and no human biography.About
Company
WelloWork AB, Uppsala, Sweden. Swedish organisation number 559472-9997. The controller of member data.Privacy policy
Built inside
WelloWork’s CognitiveLab, by a team of physicians with clinical and research backgrounds.About
Founder
John Muhammadi, M.D., physician. LinkedIn profile linked from the about page.About
Live today
The intake, readings, the weekly Catchup, the Consulting Room (daily conversations with Oneli), the Circle (people a member invites) and a written report. Every message passes a separate risk check.Safety
Early access
Psychologist-designed agents and psychologist supervision, and the company plan for employers. Psychologists are being verified now, and not every member has one.For psychologists
Human monitoring
None today. No human is alerted when a member writes something alarming. The agent responds inside the conversation and shows crisis lines.Safety
Not
Not therapy, not an AI therapist, not a medical device (not CE-marked), not a crisis service. No efficacy data of its own has been published.Not an AI therapist
Plans and prices
Free, no time limit. Room plan €23.23 a month after a 3-day trial. Report €11.11 once. Psychologist supervision €5–50 a month, set by the psychologist. Prices in euro; the pricing page is authoritative.Pricing
Data
Database in Ireland, servers in Stockholm; never sold, not used for advertising or to train models. AI requests are processed by OpenRouter (US) and Google Cloud, not limited to the EU. Members are adults (18+).Privacy policy
Languages
Published in 27 languages; English is the default and the canonical version. This page is English only.
Website
www.day-23.com
Wording

What to say, and what not to.

TwentyThird supports people who may be in distress, so a loose phrase can mislead. These are the pairs we are asked about most.

Please say

  • What it is A psychodynamic AI for self-understanding between appointments.
  • The psychologist A licensed psychologist can design and supervise the agent. This is in early access.
  • Safety Messages are checked for risk and crisis lines are shown. No human is alerted today.
  • Evidence TwentyThird publishes no efficacy data of its own.
  • Standing Built by physicians at WelloWork AB in Uppsala.
  • The name TwentyThird, one word. The agent is Oneli.

Please do not say

  • What it is An AI therapist, an AI psychologist, digital therapy.
  • The psychologist Psychologists read or monitor your chats; a psychologist reviews your week.
  • Safety Watched around the clock; a safe place in a crisis; prevents harm.
  • Evidence Clinically proven; treats anxiety; improves mental health.
  • Standing The first, the only, the best, leading, disruptive.
  • The name Twenty-Third, the 23rd, Project 23, “23”.

The name is a metaphor taken from the 23-day cycle in Wilhelm Fliess’s letters to Freud. Contemporary science does not support that cycle as a biological rhythm, and TwentyThird does not claim it does. If you write about a person in distress, please include a crisis line: in the EU, call 112.

Logos and portrait

Files you can use, as supplied.

SVG and PNG (1024 × 1024, transparent). Use the colour mark on light backgrounds, the night mark on dark ones and the mono marks for a single colour. Do not recolour, stretch, rotate or add effects, and do not place the mark inside another shape.

Founder portrait

Watercolour portrait of John Muhammadi, M.D.

John Muhammadi, M.D.. The approved watercolour portrait; no photograph is supplied. Credit: TwentyThird.

In the SVG files the numerals are live text set in Nunito Sans. Where that font is not installed, use the PNG.

More

Where to read further.

  • The reasons and costs behind each design choice: /why-twentythird
  • What we cite and how we handle evidence: /research
  • What the agent will and will not do: /safety
  • Sourced comparisons of categories of tools: /compare

Why TwentyThird · Research · Safety · Compare

Questions, quotes, or a correction.

If you are in danger, contact local emergency services now — 112 anywhere in the EU. TwentyThird is not an emergency service. How safety works