Introduction

Post-training tooling for building long-horizon agents.

Synth makes finetuning, RL training, and prompt optimization straightforward for agent developers. Expose your application via a simple task app apis, upload data in familiar formats, and develop downloadable models and systems for production use.

Get started

Create your account at https://usesynth.ai.

Explore the Synth SDK docs to install our SDK, configure your task apps, and launch your first hosted job.