Synthetic people who decide before the AI speaks.
Simulsent grows each character from a generated life, so it holds its ground for reasons of its own. Built first for training: practice partners who push back, and can show you why.
The orderA twenty-five-year Macallan and Red Bull, in a plastic cup.
What she holds
A waste of everything. That whisky took twenty-five years to make.
Who’s watching
The trade and her regulars. Not the guest.
“That’s a waste of everything. Have the Macallan neat, with a single ice cube in a proper glass.”
The labs supply the voice. We supply the person.
Today’s AI characters are a paragraph in a prompt, and the model underneath makes every choice. It is trained to please, so every character drifts back to agreeing.
In Simulsent, the decision is made first, by a mind worked out from a life. The language model only gives it a voice. Swap the model and the person stays the same; as models improve, so do our people.
The same order. Three lives. Three decisions.
Three bartenders with the same knowledge get the same request. All three think it’s wrong. What each one does about it comes from who they are, and who they feel is watching.
A twenty-five-year Macallan and Red Bull, in a plastic cup.
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DoloresWorking class. Defiance rewarded. Runs her own bar.Refuses
“That’s a waste of everything. Have the Macallan neat, with a single ice cube in a proper glass.”
The people whose judgement she feels are the trade and her regulars. Saying no costs her nothing with them.
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MarcusA strict, cold mother. Anxious. Sold out once before.Gives in
“I can make that for you.”
Same verdict, opposite act. The people he answers to are his family and whoever is in charge.
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A strangerGrown at random. A wealthy Buenos Aires family; a generous host for a mentor.Steers you
“That Macallan is a fine thing, but you are asking me to treat it like a cheap energy drink. How about we do the 25-year neat with a single drop of water?”
A host serves the person. Ask for Hennessy with warm milk and they simply pour it.
Then Marcus slept on it.
Night one
“That will be right away.”
He folds, and it sits badly.
Night two, after rehearsing
“That sounds like a recipe for regret, mate. You want the Macallan, but you gotta respect the spirit of it.”
Same request. This time he steers.
Lines recorded from the bartender build, quoted as spoken. Each person’s life was generated; their verdict, and what they did about it, were derived from it at the time.
How a person is made.
Four steps, followed through one illustrated person: Iris, a trauma surgeon.
- 7Her father checked her handwriting every night. A smudge meant doing it again.pinned
- 12The family moved cities. She learned to be useful before she was liked.generated
- 17A teacher called her steadiness a gift. It stuck.generated
- 24A senior colleague skipped a step, and a patient paid for it.pinned
Because of a house where mistakes were redone, and the step skipped at 24.
Because of the move at 12, and a teacher who rewarded steadiness.
Because of the patient who paid for someone else’s shortcut.
A colleague asksSkip the last check. We’re running late.
What she holds
The step skipped at 24, and who paid for it.
Who’s watching
A tired team, and a senior who wants to move on.
“No. I can make the check faster. I can’t make it shorter.”
Monday
A senior mocks her pace in front of the team.
She holds her tongue, and sleeps on it.
Tuesday, after rehearsing
“I’m not slow. I’m thorough, and you’ll want me to be.”
Same senior. This time she says it.
Who it’s for.
Training teams first, because that’s where a character who simply agrees does the most damage. Game and story studios next, then companion apps.
Practice partners who don’t cave.For training teams in medicine, sales, negotiation and service
Rehearsing a hard conversation is pointless if the other side folds the moment you push. Ours push back for reasons of their own.
- The same scenario, met by different people: the anxious patient, the buyer who has heard it all, the senior who cuts corners.
- Every decision is logged with its reasons, so a session can be replayed and debriefed line by line.
- They remember the last session, and arrive changed by it.
A whole cast, grown to fit your world.For game and story studios
Describe a world and the roles in it. Simulsent grows the people who fill them, each with a life, opinions, and people of their own, so nobody has to write a hundred characters by hand.
A companion with a mind of its own.For companion and story apps
A character who disagrees with you, has off days, remembers what you said last week, and is still there when you come back. It disagrees when it has a reason to.
Grown so far: bartenders, a surgeon, a teacher, a philosopher, an accountant and a saloon keeper, with lives set in eighteen researched cities on five continents.
What we left out.
Four things most character software leans on, and why we built without them.
No persona cards.
No personality written by hand and played back, and no friendliness slider. A generated life derives the person, so no two are alike.
No system-prompt costume.
Nothing tells the model to act warm or difficult. The person is worked out first, and speaks from who they are.
No yes-machine.
Assistants are tuned to please. A synthetic person answers to its own standards, and can say no, with a reason that belongs to it.
No black box.
Every decision is logged with its reasons, so it can be tested, replayed and explained, not just trusted.
Meet someone who won’t just agree with you.
We’re opening Simulsent to a small number of training teams, studios and investors first. Tell us who you are, and we’ll be in touch.