Last updated 07-24-2026
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Whybot
Whybot is a web app for exploring questions in depth. You ask a why or how question, and the tool responds by generating answers and follow-up questions that branch into related topics. It started as a hackathon project by John Qian and Vish Rajiv and remains a lightweight research companion.
The default setup uses a Researcher persona with the GPT-3.5 Turbo model. You can type your own question, use the random question suggester, or run built-in examples to see how the tool works. A prompt counter on the interface tracks how many queries you have left.
Settings let you switch personas and models to change the tone of responses. The about page notes the project began at the AngelList Agent Hackathon and is still actively maintained with community feedback in mind.
Whybot suits anyone curious about science, psychology, technology, or general knowledge who wants structured explanations rather than one-line answers.
Recursively generates answers and follow-up questions to explore a topic in depth
Researcher persona with GPT-3.5 Turbo for structured, cause-and-effect explanations
Random question suggester and example runs to get started quickly
Switchable personas and models in settings to change response style
Prompt counter tracks remaining queries on the free web interface
Branches into follow-up questions instead of giving single-shot answers.
Simple interface with random prompts and example runs for quick starts.
Free to use with no account required on the web app.
Limited prompts per session on the free tier.
Runs on a Vercel subdomain rather than a custom branded domain.
Uses GPT-3.5 Turbo, which is older than current flagship models.
What is Whybot?
Whybot is a web tool for deeply exploring questions. You ask a topic, and it generates answers plus follow-up questions so you can branch into related ideas.
Who built Whybot?
Whybot was created by John Qian and Vish Rajiv. It started as a hackathon project and is maintained as a free web app on Vercel.
What AI model does Whybot use?
The default model is GPT-3.5 Turbo with a Researcher persona. You can change the persona and model in the settings panel.
Is Whybot free?
Yes. Whybot is a free web app with a limited number of prompts per session, shown by the prompts-left counter on the interface.
How do I start using Whybot?
Type a question in the input field, click Suggest random question for inspiration, or use Play example runs to see sample explorations.