chatgpt-personality-and-characteristics
ITIAN ChatGPT Academy
Technology Simplified — Solutions That Work
Personality and Characteristics
Choose a base communication style, fine-tune how responses feel, and test the result without confusing presentation preferences with accuracy or capability.
Learning Outcomes
By the end of this lesson, you should be able to:
Explain Personality
Describe Personality as a base style and tone—not a different model, skill level or safety standard.
Use Characteristics
Adjust warmth, enthusiasm, headings and lists, and emoji use where the feature is available.
Choose Deliberately
Match a style to your purpose, audience and working preferences rather than choosing only by name.
Test Fairly
Compare settings with the same prompts, then record what actually improves clarity, comfort and usefulness.
Personality changes how an answer sounds
It does not change what ChatGPT can do, its safety rules, or whether a factual claim is correct. Your direct request and the content type still matter. If you request a formal email, functional code or a concise checklist, ChatGPT may follow that task-specific style even when your selected personality normally sounds different.
Choose Personality for your usual conversational experience; describe important output requirements directly in the prompt.
The Current Personality Choices
OpenAI currently documents Default plus six selectable styles. Names and availability can change as ChatGPT evolves.
Default
Clear, neutral and adaptable.
Good starting point when you want task context to lead.Professional
Polished, precise and workplace-oriented.
Useful for formal communication and documentation.Friendly
Warm and conversational, with calm clarity and light wit.
Useful for learning, planning and decision support.Candid
Direct and encouraging, with risks and next steps made clear.
Useful for honest reviews and practical course correction.Quirky
Playful and imaginative, using humour and unexpected framing.
Useful for creative exploration and brainstorming.Efficient
Concise, plain and direct, with minimal extra wording.
Useful for technical steps, checklists and troubleshooting.Cynical
Sarcastic and dry while remaining practically helpful.
Useful when you enjoy edged humour with actionable advice.ITIAN recommendation
Friendly is a strong base for supportive step-by-step learning. Professional suits polished workplace material, while Efficient suits fast technical work. There is no universally “best” choice—the best setting is the one that helps you understand and act.
How to Change Personality
Open Settings
On web, select your profile icon. On iOS or Android, open your profile or sidebar and choose Settings.
Open Personalization
Find the Personalization section. Product wording can vary slightly by device and rollout.
Choose Base Style and Tone
Select a Personality, close Settings, and test it with the same safe prompts used before.
The change is broad
OpenAI states that changing Personality applies across chats, including existing conversations. If you only need a different tone for one answer, put that temporary requirement in the prompt instead.
Characteristics: Fine-Tune the Base
Characteristics use “more” and “less” controls to nudge response style. The feature is rolling out gradually and may not yet appear for every user.
| Characteristic | More (+) | Less (–) | When to adjust it |
|---|---|---|---|
| Warm | More sincere, kind and friendly | More emotionally neutral | Balance encouragement with objectivity. |
| Enthusiastic | More excitement, curiosity and active interest | Calmer and more measured language | Match energy to learning, work or serious topics. |
| Headers & Lists | More useful headings, lists and tables | More paragraph-based responses | Improve scanning or create a more natural reading flow. |
| Emojis | Slightly more visual colour in chatty responses | Fewer emojis, especially in informational work | Match audience expectations and accessibility needs. |
If Characteristics are missing
You have not done anything wrong. Keep your preferred Personality, state important style requirements in the prompt, and use Custom Instructions for stable explicit preferences. Check Personalization again after future app updates.
Personality, Characteristics or Prompt?
Personality
Use for the broad voice you generally enjoy: neutral, professional, friendly, candid, playful, efficient or dryly humorous.
Characteristics
Use for a gentle across-chat nudge to warmth, enthusiasm, formatting and emoji level.
Current Prompt
Use for a specific deliverable: “Write a formal complaint in 180 words with no emojis and a clear requested resolution.”
Custom Instructions
Use for stable and explicit guidance that a slider cannot express, such as New Zealand English or a preferred teaching method.
Interactive Style Test-Plan Builder
This tool creates a fair comparison plan; it does not imitate ChatGPT personalities or predict their exact responses. Use only a safe, non-sensitive test request.
A Fair Comparison Method
Choose One Prompt
Use a useful, non-sensitive request with enough detail to produce a meaningful answer.
Record the Baseline
Run it with Default and neutral Characteristics. Save observations, not private chat content.
Change One Variable
Change only Personality or one Characteristic, then run the exact same prompt again.
Compare Criteria
Score clarity, tone, structure, usefulness, comfort and unnecessary wording.
Test Another Task
Repeat with an explanation, checklist and writing request so one unusual answer does not decide everything.
Keep the Best Fit
Select the setting that works across your real tasks, then use prompts for exceptions.
When the Selected Style Seems to Disappear
The Prompt Is More Specific
“Write a formal legal-style notice” can outweigh the conversational feel of Friendly or Quirky.
The Output Has Its Own Convention
Code, résumés, tables and professional documents often follow the requested format rather than adding conversational personality.
Other Personalisation Conflicts
Custom Instructions or remembered preferences can reduce or override visible personality traits.
The Difference Is Subtle
Characteristics are nudges, not rigid commands. Test more than once and judge the overall pattern.
Common Mistakes to Avoid
Choosing by Label Alone
Test representative tasks. A name may create different expectations from the actual response style.
Changing Several Controls at Once
You will not know which change helped. Adjust one variable, compare, then continue.
Expecting Better Facts
Personality and Characteristics do not improve accuracy. Verify consequential information regardless of tone.
Forcing One Style Everywhere
A playful setting may be unsuitable for a formal complaint. Give the current task an explicit audience, tone and format.
Recommended: 16:9 • Captioned • Same-prompt demonstration
Future Guided Demonstration
The video will compare the same prompt under several settings.
- Find Base style and tone.
- Change one Characteristic at a time.
- Record observable differences.
- Resolve conflicts with other instructions.
Practical Activity: Find Your Working Style
Complete these steps using safe prompts and the settings available on your account.
0 of 10 completed — begin by opening Personalization.
Knowledge Check
Answer all five questions, then check your result.
Official Sources and Further Reading
Reviewed against current first-party OpenAI guidance on 13 July 2026.
OpenAI guidance used in this lesson
- Customising your ChatGPT personality — current personalities, behaviour, settings and examples.
- Characteristics in ChatGPT — rollout status and the current style controls.
- ChatGPT Custom Instructions — explicit guidance that works alongside personality.
- Memory FAQ — remembered context that can also influence personalisation.
Lesson Summary
Six ideas to remember
- Personality establishes a broad base style and tone.
- It does not change capability, factual accuracy or safety rules.
- Characteristics fine-tune warmth, enthusiasm, formatting and emoji use where available.
- Direct task instructions and content conventions can outweigh the visible personality.
- Custom Instructions and memories can add nuance or create conflicts.
- Use the same prompts and change one variable at a time when testing.