“don’t train your own model” is common ai advice. it's wrong. your token bill's the proof.

CastformTry Castform →girish · added yesterday

Open preview

Castform is a platform designed to simplify training custom open-weights models using proprietary data and agent traces. It automates data preparation, algorithmic selection, and GPU management to provide a cheaper, more performant alternative to closed models.

Highlights

• ▸Open preview launch
• ▸Automated training data generation from raw corpora
• ▸Managed GPU infrastructure
• ▸Interactive IDE to chat with models during training
• ▸Cost reduction compared to token-based closed models