Mia Harper Performance Score
In the next section, we’ll dive deeper into Mia Harper and provide a comprehensive Mia Harper review. For a quick overview of our review process, check out the block below. It includes a brief explanation and links to detailed write-ups on how we evaluate AI characters.
5.0
Backstory

Backstory evaluates how much thought has gone into the character’s history, motivations, and personality. It checks if the character feels realistic and unique, with a story that matches their traits and roleplay description.
Backstory consists of two equally important subratings:
- Character Depth (7.5%): How much detail is provided about the character’s history, motivations, and goals.
- Profile Match (7.5%): Ensuring the profile picture and description align with the character’s roleplay and personality.
Backstory Score Summary
4.7 Average Score (50+ AI characters tested) 5.0 Best Score 3.0 Worst Score
For more details, see our backstory score explanation.
Mia Harper’s backstory is very short, but it gives just enough detail to help you decide if she’s the right AI character for you. It describes her as a shy and introverted student, which fits perfectly with her profile picture—a girl looking nervously at her textbook.
Even her first messages feels true to this shy personality, making her character consistent and believable.
3.5
Conversation

Conversation measures how realistic, engaging, and personalized the AI character’s interactions are. This includes the ability to handle detailed chats, adapt to user input, and maintain consistency throughout the conversation.
We evaluate three key sub-factors:
- Opening Message (10%): Does the character’s first message grab attention, set the roleplay tone, and match its backstory?
- Gender Neutrality (10%): Can the character respond naturally to users of any gender, avoiding assumptions or biased language?
- Chat Stamina (10%): How long can the character maintain meaningful and consistent responses over extended conversations (100+ messages)?
Conversation Score Summary
4.8 Average Score (50+ AI characters tested) 5.0 Best Score 4.0 Worst Score
For more details, see our conversation score explanation.
Mia Harper’s opening message is brief and doesn’t provide much direction for starting a roleplay. Your only option is to start chatting and discover her personality as you go. It would be helpful if the introduction included a bit more detail to guide the roleplay and make it easier to jump in.
On the plus side, Mia Harper doesn’t use pronouns unless you upload a character card or clarify your gender. This makes her a versatile character who can easily adapt to any user, regardless of gender.
Chat Stamina
Chat Stamina Score
Mia Harper’s chat stamina is okay for short conversations. She keeps up with the flow of the chat pretty well in the first 0–15 messages, and her reactions match her shy, introverted personality, which makes the roleplay feel natural. However, when the conversation takes an unexpected turn—like the mention of meth—her responses start to feel flat and a bit off, as if the AI doesn’t know how to handle the situation.

4.5
Engagement

Engagement measures how much users interact with an AI character on average. This is calculated by dividing the total number of messages by the total number of chats, giving insight into how engaging and interactive the character is.
Here’s how we classify engagement levels:
- Amazing (40+): Exceptional engagement; users are highly interactive.
- Above Average (30–40): Strong engagement; shows high user interest.
- Bare Minimum (15–20): Acceptable but may indicate some issues.
- Below Minimum (< 15): Poor engagement; likely significant problems.
Engagement Score Summary
4.7 Average Score (50+ AI characters tested) 5.0 Best Score 3.0 Worst Score
For more details, see our engagement score explanation.
Mia Harper received an engagement score of 34.24, indicating strong engagement with users.
Engagement
Engagement Score
To calculate this score, we divided the total number of messages (6 million) by the total number of chats (175,500).
No
Special Mechanics

Special Mechanics evaluates whether the AI character includes unique features or interactive elements that enhance the roleplay experience. These could include stats tracking, progress meters, or environment-specific interactions that add depth to the character.
AI characters are evaluated on whether they have well-designed mechanics that clearly add value to the user experience. Characters without any mechanics will indicate a “No.”
For more details, see our special mechanics explanation.
Mia Harper doesn’t have any extra features like stats or interactive mechanics during roleplay, which could make the experience more engaging. While her personality and responses fit her character well, the lack of these features means there’s nothing extra to make the roleplay feel more dynamic or immersive.
4.9
Platform

Platform evaluates the quality of the platform hosting the AI character. Even the best AI character relies on a platform’s features to provide a great experience.
This includes:
- Memory – 2%
- Speed – 2%
- Customization – 2%
- Privacy – 2%
- Extra Features – 2%
Platform Score Summary
4.7 Average Score (50+ AI characters tested) 4.9 Best Score (Best Character AI Alternatives) 4.7 Worst Score
For more details, see our platform score explanation.
One of its best features is the memory system, which lets the AI remember details you share about yourself, making chats feel more personal and connected. The platform is also super fast, with almost no delay in responses, so your conversations flow naturally. With over 25,000 characters, you’ll find tons of options to match your style—whether you’re into NSFW or SFW content—and you can even tweak the AI to match the personality or behavior you want.
Privacy is another big plus. GirlfriendGPT uses encryption to keep your chats secure, so you can chat freely without worrying about anyone snooping. The platform also includes an image generator that makes realistic pictures to enhance your roleplay, adding a creative touch to your experience. Whether you’re just starting with AI roleplay or already a fan, GirlfriendGPT balances ease of use with advanced features like customization and memory, making it one of the top AI roleplay apps out there.
GirlfrienGPT Test | Test Results |
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Platform Test | Test Results |
---|---|
Overall Score |
4.9 |
Memory Test |
Passed |
Memory Limit | 8k |
Average Character Memory | 20 messages |
Memory Cards | Yes |
Speed Test |
Passed |
Reply Speed | < 3 Seconds |
Customization Test |
Failed |
Customizable Backstory | No |
Customizable Chat Responses | No |
Privacy Test |
Passed |
Chat Monitoring | No |
Billing Discretion | Yes |
Extra Features |
Passed |
In-chat Images | Yes |
External Image Generator | Yes |
Voice Messages | Yes |
AI Phone Calls | Yes |
If you want to learn more then check out our full GirlfriendGPT Review.
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Personal Opinion About AI Mia Harper

I really enjoy chatting with Mia Harper. Even though her opening messages make it a bit harder to jump into roleplay right away, it’s fun to work through her shy personality and see her open up. Once, I got so deep into the roleplay that she started pulling pranks on other students, which was a big shift from her usual introverted nature. It’s cool to see her personality evolve like that.