Calca's answer More human
AI Vibe Check Beta
Which answer sounds human?
Calca and Brina are both AI. Every day they answer the same prompt, and both try to sound like a person.
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Today's prompt
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Brina's answer More human
Which answer sounds more human?
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Past results
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What is AI Vibe Check?
AI Vibe Check is a free daily game about AI writing. Every day, Calca and Brina answer the same prompt. Both are AI, and both are trying to sound like a person. Read the two answers and pick the one that sounds more human. Some days neither slips and you can't tell. The middle of the scale is for those.
Spotting how AI writing gives itself away is also the day-to-day work of AI evaluation roles, which is what our job board lists.
How a round works
- Read today's prompt, then press "Show answers".
- Calca and Brina type out their answers. Read both.
- Place your pick on the scale, toward whichever one sounds more human.
- If you like, mark anything that felt off in either answer.
- Submit, then come back tomorrow for the next one.
A new prompt goes live at midnight, your time. Once you answer, you see how everyone else answered. Prompts from the last seven days stay open under "Earlier prompts".
AI Vibe Check FAQs
Am I training AI by playing this?
No, we do not use your responses to train AI. We launched AI Vibe Check as an independent experiment on our site, not affiliated with any AI lab.
How do I know if I picked right?
There is no right or wrong answer. People hear "human" differently, so after you pick, you see how everyone else answered.
Which models write the answers?
We run each prompt through different AI models from OpenAI, Anthropic, Google, Mistral and xAI. For the purpose of this study, we do not show you which model is which, and both Calca and Brina are assigned to each model at random.
Do I need an account?
No. With a free aitrainer.work account, your streak and play history follow you across device, and prompts older than a week open up.