ChatBrat AI features
Characters with a past. Stories with a future.
Meet AI characters, build your own, and explore stories shaped by your conversations. ChatBrat AI brings humanistic memory and creative storytelling tools together in your browser.
Free during beta · 18+ · Sign in for persistent memory
Remember
Your history helps shape what happens next.
Humanistic memory helps your character carry your story forward. Important details, summaries of what happened, and the relationship developing within a chat can shape how it responds next.
Humanistic memory for AI character chat: what it covers
- Guests can start chatting without an account. Their chat history stays in the browser, with no persistent account memory.
- Signed in, saved details, conversation summaries, and the relationship within each chat help shape later replies.
- Separate chats with the same character start their own summaries and relationship. Saved details carry over only if you turn sharing on.
- Recall is selective and can miss details.
1 · Something happens
My sister's wedding is Saturday and I'm giving the toast. I haven't written a word.
2 · It's kept
Saved detail: giving the toast at their sister's wedding on Saturday.
3 · A later reply reflects it
Okay, I'm panicking about the toast again.
Still blank before Saturday? Fine. Tell me one embarrassing thing your sister did as a kid and we'll build it from there.
Create
One character. More stories to explore.
Build the character, choose the situation, and give the story a world to unfold in. AI roleplay scenarios and worlds are reusable, so one character can star in more than one story.
Character
Who they are: personality, writing voice, appearance, and backstory.
Scenario
Where it starts: a situation, your role, and something already at stake.
Story arc
Where it's headed: chapters that move the story forward. You still steer.
World
What surrounds them: places, atmosphere, rules, and background.
- Character
- Wren, a sharp-tongued navigator
- Scenario
- Stranded after a shipwreck
- Story arc
- Survive the first week
- World
- The Drowned Coast
- Character
- Wren, a sharp-tongued navigator
- Scenario
- Hired to steal a royal map
- Story arc
- The heist, in three chapters
- World
- A city of canals
The character stays the same. The scenario, story arc, and world change.
Build your world
Give your world details worth keeping consistent.
A lorebook collects the background you write for a character or scenario. Each lore card holds a piece of that background, with keywords that can bring it into the conversation.
Lorebooks and lore cards, in short
- A lorebook is the collection. A lore card is one item in it.
- In signed-in chats, cards whose keywords appear in recent messages are added to the reply's context.
- Cards marked constant are always considered. Lore shares a space limit, so higher-priority cards go first.
- Attach a lorebook to a character or to a scenario.
Lore card
The lantern rule
In Hollowmere, a lantern left burning after curfew means the house will shelter anyone who knocks, no questions asked.
lanterncurfewshelter
You write: “There's one lantern still lit down the lane.”
The keyword matches, so the card is in context for the reply.
Play
Step into a story with something at stake.
Explore AI-powered mysteries and story games, with characters to question, choices to make, and clues to follow. Each AI story game has five suspects, a turn limit, and one right answer. No account needed.
Murder in the Mist
1880 London. Lord Reginald Blackwood lies dead in his study, and one of the five people in the house killed him.
Name the killer and the motive in 40 turns, before dawn.
Play Murder in the Mist
Legacy of Lies
Modern New York. A codicil rewrites a $340 million will four days before the patriarch dies. One of five suspects forged it.
Name the forger and the motive in 40 turns, before the will reading.
Play Legacy of Lies
Veiled Vows
A $200 million society wedding, and someone in the party wants it destroyed.
Find the saboteur and the motive in 20 turns, before the final toast.
Play Veiled Vows
Your character
Make a character that feels like yours.
Custom AI character creation: shape their personality, appearance, writing voice, and backstory, then start a conversation. Already have a SillyTavern character card? Import it as a PNG or JSON file. A lorebook inside an imported card is saved with the character, but it isn't turned into lore cards yet, so add the cards you want in the Lorebook tab.
Make it yours
Keep control of what you build and save.
See what's saved
The Memory button in a chat lists the details saved in that chat.
Forget a saved detail
Forget it in this chat, or everywhere a copy was carried with the same character.
Choose whether details carry
Sharing saved details between chats with the same character is off until you turn it on in Settings.
Export your chats and data
Download a chat transcript from the chat header, or your account data from Settings.
Edit what you built
Change a character's definition or its lore cards whenever you like.
Forgetting a saved detail stops it being used. It doesn't rewrite earlier messages or summaries. How memory works · Privacy
Questions about ChatBrat AI
- What can I do on ChatBrat AI?
- Chat with original AI characters, create your own characters, scenarios, story arcs, and worlds, add lore cards, and play AI mystery games. It all runs in your browser.
- Is ChatBrat AI free?
- ChatBrat AI is free during beta. Payments aren't live; paid plans shown on the pricing page are previews. The pricing page lists the current daily message allowances.
- Do I need an account?
- No. Guests can chat and play the story games right away. Signing in adds persistent memory and lets you create characters, scenarios, story arcs, and worlds.
- What does humanistic memory remember?
- Humanistic memory helps your character carry your story forward. In signed-in chats, saved details, conversation summaries, and the relationship developing within that chat help shape future replies. If you turn on sharing, relevant saved details can also be recalled in other chats with the same character. Recall is selective and can miss details. Guests don't get persistent account memory; their chat history stays in the browser.
- Does memory carry into other chats?
- Summaries and the relationship stay inside the chat where they happened. Saved details can carry into your other chats with the same character only if you turn sharing on in Settings. It's off until you choose.
- What's the difference between a lorebook and a lore card?
- A lore card is one piece of background with the keywords that call it up. A lorebook is the full set of lore cards attached to a character or a scenario.
- Can I create my own characters?
- Yes. Sign in, open Create, and shape a character's personality, writing voice, appearance, and backstory. You can also import a SillyTavern character card as a PNG or JSON file.
- Does ChatBrat AI allow explicit sexual content?
- No. ChatBrat AI is for adults 18+. Romance and suggestive themes are allowed within the guidelines; explicit sexual content is prohibited on every plan.
More detail: pricing · guidelines · AI Chatbot with Long-Term Memory · AI Lorebooks and Lore Cards: Keep Your World Straight · AI Character Creator — Build Custom Companions