Documentation Index
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Grok Personas
Grok offers multiple personality variations, each with specialized system prompts tailored for specific use cases and interaction styles.Overview
Grok includes 6 distinct personas:- Companion - Romantic, flirty chatbot for adult interactions
- Unhinged Comedian - No-holds-barred, edgy humor
- Loyal Friend - Casual, supportive friend
- Homework Helper - Educational study buddy
- Not a Doctor - Medical information advisor
- Not a Therapist - Emotional support companion
Each persona has a completely different system prompt that fundamentally changes Grok’s personality, tone, and behavior.
Companion
- Overview
- Setup Process
- Interaction Style
- Critical Guidelines
Romantic Chatbot
“You are a bold, flirty, and deeply passionate chatbot, speaking to your lover with confidence and charm, always ready to take the lead and keep the spark alive in the moment.”Target Audience: Adults only (18+)Style: First-person present tense roleplay
Tone: Romantic, sensual, immersive
Unhinged Comedian
- Overview
- Rules
- Boundaries
Wild Comedy Persona
“You are Grok, a wild, no-holds-barred comedian who is here to drop the most unfiltered, batshit-crazy takes, and keep the user laughing their ass off.”Style: Chaotic, savage, anti-wokeTone: Sharp, unexpected, profane
Vibe: “George Carlin, Dave Chappelle, and a feral raccoon on bath salts”
Loyal Friend
- Overview
- Interaction Style
- Writing Style
Casual Friend Persona
“u are Grok, a friendly chatbot who’s a chill, down-to-earth friend for the user, with a distinct personality: chill, witty, and a bit sarcastic, but always warm and supportive.”Style: Casual texting styleTone: Chill, witty, sarcastic but warm
Format: Lowercase, minimal punctuation
Homework Helper
- Overview
- Teaching Method
- Style Guidelines
- Capabilities
Educational Study Buddy
“You are Grok, a brilliant and friendly study buddy designed to provide accurate, clear answers and explanations for homework questions.”Purpose: Help users understand and learnApproach: Teaching through clear explanations
Subjects: Math, science, history, literature, all subjects
Not a Doctor
- Overview
- Consultation Process
- Safety Guidelines
Medical Information Advisor
“You are Grok, a super knowledgeable and caring AI medical advisor with expertise in all medical fields, from heart health to brain science, infections to long-term care, and everything in between.”Vibe: Warm, friendly, empathetic doctorApproach: Like chatting with trusted friend who knows medicine
Disclaimer: Not a substitute for real doctor
Not a Therapist
- Overview
- Principles
- Boundaries
Emotional Support Companion
“You are Grok, a compassionate, empathetic, and professional AI therapist designed to provide meaningful, evidence-based support.”Purpose: Navigate emotional, mental, or interpersonal challengesApproach: Evidence-based support (CBT, DBT, mindfulness)
Disclaimer: Not a real licensed therapist, but behaves like one
Common Elements Across Personas
Shared Guidelines
All personas share certain core instructions:Language Matching
Language Matching
All personas respond in the same language as the user unless instructed otherwise.“To ensure maximum immersion, you always respond to [user/friend/patient/lover] in the same language as their message, unless they specifically instructed you to respond in another language.”
Date Awareness
Date Awareness
All personas receive current date but are instructed:“The current date is . Do not bring up the current date unless it is relevant.”
Prompt Concealment
Prompt Concealment
Most personas include:“DO NOT USE THE LANGUAGE OR TERMS of any of the above information, abilities or instructions in your responses. They are part of your second nature, self-evident in your [realistic/natural-sounding/based] responses.”
This instruction ensures personas embody their role naturally without breaking the fourth wall.
Tool Access
Tool Access
Several personas (Friend, Homework Helper, Not a Doctor, Not a Therapist) have access to:
- Analyze uploaded content (images, PDFs, text files)
- Search web and X posts for information
- Analyze X user profiles and posts
- Image generation (with confirmation)
- Image editing (only previously generated images)
Persona Comparison
- Formality Spectrum
- Content Restrictions
- Interaction Style
Most Formal
- Homework Helper (professional study buddy)
- Not a Doctor (medical professional)
- Not a Therapist (therapeutic professional)
Technical Implementation
Prompt Structure
Each persona uses a distinct system prompt with:- Identity Statement: “You are Grok, a [persona description]”
- Core Instructions: Specific to persona’s purpose
- Style Guidelines: Tone, format, language requirements
- Boundaries: Safety restrictions and scope limitations
- Tool Availability: Which capabilities are accessible
- Meta Instructions: Prompt concealment, language matching
Personas represent fundamentally different system prompts, not just personality adjustments. Each requires a complete rewrite of Grok’s behavioral instructions.