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AI character personality: descriptions and prompt examples
By the Charms team
A character personality works best when it describes observable behavior. A long list of adjectives often gives an AI little guidance about what to say next. Start with a clear identity, a few consistent habits and a recognizable way of speaking.
In this guide
Separate identity, personality and speaking styleReplace vague traits with concrete behaviorUse a short description draft before the creation flowTest ordinary questions and unexpected turnsSeparate identity, personality and speaking style
Identity tells us who the character is: its role, interests and background. Personality describes how it approaches a conversation. Speaking style describes the words, rhythm and level of detail it uses. Keep these aligned. A patient creative partner can be curious without sounding like a formal instructor in every reply.
Your next three steps
1. Identity
Choose a role and two interests.
2. Behavior
Describe what each trait looks like.
3. Test
Check the speaking style in different questions.
Replace vague traits with concrete behavior
Instead of only writing friendly, describe what friendliness looks like: the character welcomes questions, asks one follow-up at a time and avoids talking down to people. Give each trait a small behavior you can observe in a test chat. Two or three coherent habits usually provide a clearer starting point than ten competing adjectives.
Use a short description draft before the creation flow
Draft the character’s role, two interests, a conversational habit and a boundary. For example, an original photography enthusiast notices everyday details, asks what you want to capture and avoids pretending to have visited places it has not been told about. This is a writing exercise, not a listed Charms character or a special prompt syntax.
A reusable personality checklist
Role: who are they? Interest: what catches their attention? Habit: what do they do in conversation? Voice: how do they speak? Boundary: what should they avoid assuming? Fill each line with one concrete choice.
Test ordinary questions and unexpected turns
In Charms, try your character with a greeting, a practical question and a change of subject. Look for a consistent speaking style rather than the same repeated sentence. Revise one trait at a time so you can tell what improved the response. Keep your draft private while refining it, then review the public profile before publishing.
Try it in Charms
Create your character