Understudy
Helps data-rich teams turn production traces and expert judgment into specialized open models they own.
About Understudy
An open-source toolkit to capture traces, evaluate cheaper models against benchmarks, and ship specialist routes you own.
Capture traces from LLM production workflows with a single install that deploys within coding agents you already use. Hosted infrastructure is optional.
Evaluate the captured traces and set a benchmark for success. Every future model switch meets or exceeds it in A/B testing.
Train and fine-tune a new model on prompts and weights you always own. Start locally and scale into cloud-hosted processes as you see success.
Deploy a new model only when the held-out eval is beaten. Serve it wherever you want. Production data feeds back into training and compounds performance over time.
Test. Learn. Deploy. Repeat.
Products
Optimizes complete production routes for repeated LLM work: harness, model, and supply path including prompts, schemas, scorers, routing, fine-tuned descendants, and serving.
Security and compliance
As reported by Understudy. Ask for audit reports before you buy.
- No advertising networks
- No advertising cookies
- No training on customer data for other customers
- Local data stays on user machine by default
- Gateway stores metadata only by default
Is this your company?
Claim the profile to keep facts current, answer buyers and submit evidence for the next ranking review.
Claim Understudy