A mod for The Sims 4
Real dialogue in game-style speech balloons over their heads, tinted by mood, written fresh from who they are, how they feel and what they remember. Type one line and the room answers out loud, in 95 voices.
Unedited recording
One typed line, three sims answering on their own, in character and out loud. Recorded in game, nothing scripted.
What they said
The balloons are drawn inside the game's own interface, so they look the same on Windows and Mac.
Three ways in
Click any sim and open the Sims AI menu. Pick how the scene starts, then watch it play out.
Type the exact line your sim says. The other sim hears it and answers in character. These are the chats that get voiced.
Speak to Marisol
I booked us a table at the place where we met.
I booked us a table at the place where we met.
You remembered the place? Okay. Come here, you big sap.
Acted out: Hug
Talk to everyone nearby at once. Up to three sims answer in turn, and each of them remembers the scene later.
Speak to the group
Who keeps eating my leftovers? I put my name on them.
Who keeps eating my leftovers? I put my name on them.
Names are more of a suggestion.
It was Theo. It's always Theo.
I only licked the lid.
The socials you already click (Flirt, Tell Joke, Ask about Career) get real lines instead of Simlish.
What do you call a fake noodle? An impasta.
I'm a line cook, Theo. I'm legally required to hate that.
Do nothing at all. When sims socialize on their own, they say things worth reading.
Did you finish your homework, or are we doing the "I left it at school" thing again?
It's at school. Spiritually.
Example lines. Yours are written fresh for your own sims, every time.
They act it out. When the moment calls for it, the AI adds one matching social: a hug with the apology, a yell with the ultimatum. AI actions switch off in Options.
It sticks. What you say lands: a chat can move friendship and romance and leave your sims with a moodlet.
WickedWhims? Sims keep talking during scenes too. Switch off Intimate scene talk in Options any time.
Pets? They stay quiet until you let them talk, one animal at a time.
What goes into a line
Every line starts from your save. This is what the mod reads before a sim opens their mouth.
Marisol Vega
Young Adult
01
Hot-Headed talks nothing like Cheerful. And every mood arrives with its reason, so the AI knows she's Flirty because of the banter, not just that she is.
02
Career and level title, the next shift or whether they're on it right now. Students bring their grades, majors and degrees.
03
The town, the venue, staff or customer, who else is in the room, the weather, the holiday, even the stove they're standing at.
04
Starving, exhausted or desperate for the bathroom. Money to burn or money's tight. Pregnant, a ghost, or a dog named Rosie.
05
First dates, first kisses, old fights and the plans they made. Then Theo walks in with a paper bag.
Example sim. Trait, mood and career names come from the game itself, in your game's language.
Memory
A conversation doesn't vanish when the bubble fades. It becomes history the next chat can lean on.
Tuesday. You direct a chat.
Remembered as a plan
Saturday. Nobody told her to say this.
Agree to something in a chat and they hold each other to it for days.
First kiss, first date, the engagement. The milestones color every chat that comes after.
Tell the barista a secret with one sim, and she still knows it when your housemate walks in.
Load an older save and the chats since then roll back with it.
Undo the last exchange, reset a pair, or make an NPC forget your household, all from the Sims AI menu.
Voice
95 voices, and the delivery follows the mood: anger comes out clipped, a confession comes out as a whisper.
Confrontation [clipped] + [shaky]
Saying it out loud [whispered] + [breathless]
Real clips from the mod, in English. Voice plays on the chats you direct.
Personality of Marisol...
Talks fast when she's nervous. Never apologizes first. Calls everyone "chef".
Background of Marisol...
Grew up above her parents' bakery. Quit culinary school and won't say why.
World notes...
1890s Windenburg. No phones, no cars. Letters take a week to arrive.
Create a custom voice
A smoky voice with a slow western drawl.
Personality and background belong to one sim. World notes cover the whole save, and every save keeps its own.
Inside the game
Sims AI has its own button on the HUD, a settings panel that springs out of it, and menus built in the game's own style. It looks the same on Windows and Mac.
One click opens the panel. Pick a voice, write a personality and background, or fix a memory for the sim you chose, and use the World tab for notes about the whole save.
Directed chats and group scenes open a composer with a live character count. Enter sends, Shift+Enter starts a new line.
The Usage page shows today's conversations as a ring, bars for voiced lines and voice designs, and when the count resets.
Mood
A sim's in-game mood tints their bubble in a quiet, everyday way. When one line really carries the emotion, it gets the full treatment. Shouts burst the outline, whispers dash it, and thoughts float as clouds.
A jagged red edge that crackles, an anger vein and puffs of steam.
A lime glow with sparks crawling along the edge.
Pink warmth and hearts drifting up.
Gold sparkles and a little bounce.
Music notes and confetti.
A drooping bubble and a single tear.
A shivering edge and a bead of sweat.
A blush spreading across the bubble.
A gold border with a shine that sweeps across.
WickedWhims scenes get a rose-to-magenta flush with a heartbeat, steam and hearts.
A comic burst outline for shouts, a dashed one for whispers.
A fluffy cloud with a trail of puffs.
Install
Four files inside: sims4_ai_chat.ts4script, sims4_ai_chat.package, sims4_ai_chat_updater.ts4script and s4ai_native.dll.
Copy them straight into Documents/Electronic Arts/The Sims 4/Mods/, not into a subfolder.
Your browser opens on Patreon by itself. Approve, come back to the game, and your free trial starts on the spot.
Base game only, no packs needed. Windows and Mac.
Chat bubbles are drawn inside the game's own interface, so they work on Windows and Mac. New installs start with bubbles on; to switch them off or back on, open the Sims AI menu on any sim, then Options, and toggle Chat bubbles.
Mods not loading? In the game, open Options, then Game Options, then Other. Tick Enable Custom Content and Mods and Script Mods Allowed, then restart.
Pricing
Every tier gets the bubbles, the voices, the memory and the group chats. Paying more buys more conversations, more voiced lines and more voice designs each day.
75 conversations on the house, up to 10 voiced a day and 10 voice designs a day. A free Patreon account is enough. No payment needed.
Download and try it$5/mo
A few chats a night
$10/mo
For most players
Popular
$20/mo
Long play sessions
$30/mo
Voice-first players
$60/mo
For the heaviest voice users
Currently shipping v2.0.0. Active development; new features land regularly. Your subscription covers server costs and funds the next round of work.
FAQ
Short answers to what people ask most. Anything else goes straight to the dev through the form below.
New installs start with them on. If yours are off, open the Sims AI menu on any sim, then Options, and turn on Chat bubbles.
The bubbles are drawn inside the game's own interface, so they work on Windows and Mac. If they never appear, check that all the files made it out of the zip into your Mods folder, then restart the game.
Bubbles need Windows and the s4ai_native.dll file in your Mods folder. It's in the download, so if bubbles never appear, check that all four files made it out of the zip, then restart the game. On Mac the same lines arrive as in-game notifications instead.
Sign-in starts once a household is loaded, not on the main menu. Load a lot and your browser opens on Patreon by itself; approve there, come back to the game, and a notification confirms you are signed in.
If no browser window appears, restart the game to get a fresh sign-in link. Links work once and last 30 minutes.
Three kinds. Directed: pick Tell them something... or Tell a group something... and type what your sim says. Clicked socials: the interactions you already use, like Flirt or Tell Joke. Autonomous: chats sims start on their own.
Yes, from the Sims AI menu on any sim. Personality of [Sim]... sets how they talk; the AI writes a first draft and you can rewrite it. Background of [Sim]... is their history, treated as true. World notes... covers the whole save: the era, the setting, what exists and how people speak. Each save keeps its own notes.
Every AI-written conversation counts once, whether you directed it, clicked a social, or the sims started it. Voice has its own smaller daily budget and only ticks when a line is actually spoken, which happens on the chats you direct. On the free trial the 75 conversations are a one-time allowance, not a daily one.
At a cap, dialogue pauses (or voice switches to text) until midnight UTC. The Usage row in Options shows where you stand.
Yes, from Options in the Sims AI menu. Reroll voice picks another one, Browse voices... lets you audition all 95, and Create custom voice... builds a new one from a short description (every tier, with a daily limit on tries). Switch Voices off and directed chats play as text, with no voice budget used.
Yes. In the Sims AI menu, choose Reset memory between [Sim] and [Sim] for a clean slate, or Undo the last exchange to take back just one chat. Only the AI's memory is cleared; friendship and romance bars stay where they are. Make [Sim] forget my household... wipes what one NPC remembers about all of your sims.
That's an AI action: when it fits, the AI attaches one matching social to a conversation and your sim performs the real animation. It goes through the same checks as a social you click yourself, so a busy or unwilling sim just declines and the dialogue still shows. Turn AI actions off in Options if you prefer words only.
Yes. It runs alongside MCCC, WickedWhims, Lumpinou's mods and most others. With WickedWhims, sims keep talking during scenes; switch off Intimate scene talk in Options if you'd rather they didn't. If two mods change the exact same interaction, the usual load-order rules apply, but conflicts are rare.
Only if you want them to. Animals stay silent by default. Click a pet, open the Sims AI menu and choose Let [name] talk with AI; Stop [name] talking with AI undoes it.
No. Uninstall any time and your save loads cleanly without it. The AI's memory lives on the mod's server, not in your save, and anything it changed through normal play, like a friendship boost after a chat, is ordinary game data.
Through Patreon directly. Your tier auto-syncs from there. Upgrade, downgrade, or cancel at any time and the mod reflects the change on next launch. No separate billing or account inside the mod.
Found a bug, hit a snag, want to suggest a feature? Send a note and you'll hear back.
