Feyn
Custom models trained on your data
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About
Feyn is an end-to-end service for building custom models from your data. Our models learn how your product actually works, handle the rare cases that are costly to get wrong, and grow sharper the longer they run. Our engineers start by reviewing your current setup and agreeing on what quality means for your workflow. Then we train a model on your data. Once it ships, new cases feed back into training so the model keeps improving. The result is a model that runs faster, improves with use, and is yours to own. Feyn is a Y Combinator company (Spring 2025). YC-listed status: Active.
- Website
- usefeyn.com
- Location
- San Francisco, CA, USA
- Added via
- web
- Ownership
- unclaimed
Where to go
Products
- Feyn — End-to-end managed service that trains custom AI models on production data, ships them, and keeps them improving through a continuous feedback loop. · Service
Links
- Y Combinator profileycombinator