# Toast

- **Event:** [Cartesia x Anthropic Voice Agents Hackathon hosted by Notion](https://cerebralvalley.ai/e/cartesia-voice-agents-hackathon)
- **When:** Feb 7 at 9:00 AM – Feb 8 at 3:30 PM (PST)
- **Where:** Notion HQ, San Francisco, CA
- **Team:** [Vy Phuong Huynh](https://cerebralvalley.ai/u/vyhuynh)
- **GitHub:** https://github.com/vyhnh34/toast-voice-agent.git
- **Demo video:** https://vimeo.com/1163058607?share=copy&fl=sv&fe=ci
- **Gallery:** https://cerebralvalley.ai/e/cartesia-voice-agents-hackathon/hackathon/gallery
- **Page:** https://cerebralvalley.ai/e/cartesia-voice-agents-hackathon/hackathon/gallery/11

Toast is a user testing stimulator voice agent that roasts your product ideas. Instead of slow user testing, Toast simulates distinct user personas, such as a confused Boomer Dad or a skeptical VC, pulled dynamically from a Notion database. Using Cartesia’s expressive voice AI and Anthropic’s reasoning, these personas react in real-time, delivering brutally honest, entertaining feedback on your product ideas before you write a single line of code. It turns the chore of user research into interactive, constructive conversation.

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Markdown version of https://cerebralvalley.ai/e/cartesia-voice-agents-hackathon/hackathon/gallery/11. Site index for agents: https://cerebralvalley.ai/llms.txt · full text: https://cerebralvalley.ai/llms-full.txt