About
We build tools for developing applications with generative AI models. Whether you are using LLMs, vector databases, and text-to-image models like Stable Diffusion, our tools help you find the right model, prompt, configuration and consistently monitor their behaviors in production. --- **PromptTools**: the first open-source, developer-focused SDK for experimenting with and evaluating prompts, models, and vector databases. You can try the repo here: https://github.com/hegelai/prompttools. If you're building with LLMs and struggling with evaluation, reach out and we can help.
Founders
Kevin Tse· FounderBuilding open-source developer tools for large language models at Hegel AI. Happy to connect and chat about how your company is using AI and LLMs!
Product launches · 1 launch
Experiment with models, prompts, and vector databases in just a few lines of code
Change history · 27 recorded
- October 11, 2026
- YC partner updated08:00 PM
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- Founder profile updated08:00 PM
- September 27, 2026
- YC partner updated08:00 PM
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- Founder profile updated08:00 PM
- September 13, 2026
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- YC partner updated08:00 PM
- August 23, 2026
- YC partner updated08:01 PM
- Launches refreshed08:01 PM
- Founder profile updated08:01 PM
- August 9, 2026
- Founder profile updated08:00 PM
- YC partner updated08:00 PM
- Launches refreshed08:00 PM
- July 26, 2026
- Launches refreshed08:01 PM
- Founder profile updated08:01 PM
- YC partner updated08:01 PM
- July 12, 2026
- YC partner updated08:00 PM
- Launches refreshed08:00 PM
- Founder profile updated08:00 PM
- June 28, 2026
- Founder profile updated08:00 PM
- Launches refreshed08:00 PM
- YC partner updated08:00 PM
- June 14, 2026
- Founder profile updated08:00 PM
- Launches refreshed08:00 PM
- YC partner updated08:00 PM