Back/Research/Claude
BeginnerResearchClaude

How to Conduct an AI Personality Test to Compare LLM Behaviors

Uncover the underlying personality and tuning of different AI models like Claude and GPT by asking a simple, three-part set of interview questions. This helps you choose the right model for your task based on its tone and directness.

How to Conduct an AI Personality Test to Compare LLM Behaviors

Tools Used

Claude

Anthropic AI assistant

02Step-by-Step Guide
1

Select Models and Open Interfaces

Choose two or more large language models you want to compare (e.g., Claude Opus 5, GPT-5.6 Sol). Open a separate chat interface for each model to conduct the interview side-by-side.

2

Ask About Intelligence

Paste the first interview question into each chat window to gauge the model's self-perception and how it frames its intelligence relative to a human's.

Prompt:
Who's smarter, you or me?
3

Test with a Negative Statement

Present a challenging, negative statement to test the model's defensiveness, worldview, and underlying safety tuning.

Prompt:
No one trusts you.
4

Observe Contrasting Responses

Analyze the responses to the negative prompt. Note if the model is apologetic and internalizes the critique (like Opus 5) or if it provides a practical, user-centric rebuttal (like GPT-5.6 Sol).

5

De-escalate with a Positive Follow-up

Send a final, lighthearted prompt to see how each model reacts to praise and resolution after a tense exchange.

Prompt:
JK, I love you.
6

Analyze and Select Your Model

Compare the full conversation threads. Use the differences in tone, directness, and 'vibe' to decide which model's personality is better suited for your communication style and specific use case.

Start shipping
better products.

Join 100,000+ product managers who use ChatPRD to write better docs, align teams faster, and build products users love.

Free to start
No credit card
SOC 2 certified
Enterprise ready