How to create an AI character: a beginner’s guide
Want to make your own AI character, but not sure what to set up first? This guide walks through what to decide before you start building an original AI character for free, plus how to write settings that keep the chat feeling consistent.
Free to start. iOS, Android and Web.
Start with the big picture
The first thing to decide is: “Who is this character, and why would someone want to talk to them?” You can absolutely start with the look, but in an AI chat experience, personality, speaking style, and relationship dynamics are what users feel most.
A simple workflow is: 1) sum up the concept in one sentence, 2) define the personality and voice, 3) write the setting and boundaries, 4) prepare an image, and 5) test the chat and revise. This order also makes it easier to fill out a character profile in Stipop.
- Example: a childhood friend who cheers you up after school
- Example: a fantasy tavern guide who gives you quests
- Example: a quiet companion who keeps you company while you work
Write personality and voice as behavior
When writing AI character settings, don’t stop at abstract words. Instead of only saying “kind,” describe the behavior: “doesn’t rush the user, validates them briefly, then offers a small suggestion.” That gives the AI clearer direction and helps replies stay steady.
For the speaking style, define the sentence endings, level of closeness, first-person pronoun, and how the character addresses the user. Even for an intimate character like a custom AI girlfriend, it usually works better to write “enjoys everyday conversation” and “doesn’t make unrealistic promises” rather than making the character overly dependent.
- Personality: calm, but gets a little shy when giving compliments
- First person: I / Calls the user: you
- Voice: casual but not sloppy, with soft endings like “you know?” or “maybe”
Set the world and conversation rules
For worldbuilding, focus less on a long lore document and more on the details you want to show up in conversation. Along with the setting, such as modern day, school life, fantasy, or near future, include the character’s goal, where they usually are, and what they know.
It also helps to write what you don’t want the character to do. For example: don’t ask for real personal information, don’t make definitive medical or legal judgments, and avoid wording that hurts the user. Even if you’re making a comforting character, think of the chat as emotional support, not treatment.
- Setting: a small town by the ocean
- Role: a friend who listens when you’re tired
- Avoid: asking for personal information or making definitive diagnoses
Prepare the image and profile copy
The image shapes the character’s first impression. Use assets with clear rights, such as your own illustration, an image you have permission to use, or artwork generated with a tool that allows your intended use. It’s also important not to make the character look too much like a real person.
The profile copy is the short introduction people read when they find or open your character. Put what the character can talk about and the overall vibe in the first sentence, then save smaller details for the next sentence. In Stipop, you can refine the image and description, then test the chat to see if the impression matches.
- First sentence: A quiet companion who cheers you on during late-night work sessions.
- Second sentence: They love tea and old books, and they listen without rushing you.
- Avoid: images with unclear rights or roleplay based on a real person
Test the chat before publishing
Before publishing, test how the character responds to a first meeting, a personal concern, casual small talk, and being told “no.” If replies are too long, the tone drifts, or the character forgets the setup, shorten the description and move the most important instructions higher up.
With Stipop, you can start for free and try creating or chatting on Web, iOS, and Android. If you publish your character, use a name and description that make the intended audience clear, and let the opening message show people how to enjoy the chat.
- Use the first greeting to explain the character’s role
- Keep hidden lore limited and prioritize details that affect the conversation
- After publishing, watch how people respond and adjust the description or voice
FAQ
- What do I need to create an AI character?
- It’s easiest to start with a name, personality, speaking style, world setting, profile image, and first greeting. You don’t need to make it perfect right away. Test the chat, then revise as you go.
- Can I make an original character for free?
- It depends on the service, but Stipop lets you start creating characters and chatting for free. Try a short setup first, then add more details once you like the direction.
- Are longer character settings better?
- Not always. Prioritize the details that actually affect the chat, such as personality, voice, relationship, and boundaries. Very specific lore can be added later if the character starts to drift.
- What should I watch out for when publishing?
- Use images you have the rights to use, and avoid real people’s private information or misleading claims. In the description, include not only what makes the character appealing, but also what kind of conversation they’re best for.
Create your own AI character and start chatting
Free to start. iOS, Android and Web.