Osmosis

We're building an end-to-end platform for reinforcement fine-tuning. We help the fastest growing AI companies fine-tune OSS models that outperform foundation models.

We bring a combination of deep startup and technical expertise:

Kasey (CEO) - Previously co-founded and sold a gaming startup, most recently worked in early-stage VC focusing on AI investments. In a past life, he competed in classical piano competitions and performed at Carnegie Hall.

Andy (CTO) - Real-time data/ML expert who was the youngest tech lead at TikTok, where he led their real-time recommendations & data infrastructure team. Hacked Gradescope during COVID.

We've raised $7M from leading institutional investors like YC & CRV, as well as angels like Paul Graham and Guillermo Rauch.

Backend: Python FastAPI, Golang Frontend: React, TypeScript, Next.js Cloud infrastructure: AWS Fargate, Docker, Kubernetes, AWS SageMaker ML frameworks: Verl (nice to have), PyTorch Databases: DynamoDB, S3, LanceDB