Rasyn Analysis

Rasyn offers Marigold, an AI platform that acts as a co-chemist for research scientists by automatically selecting and executing computational chemistry tools. Users describe their research need and Marigold handles tool orchestration, returning results in organized panels. The company is a Y Combinator S26 graduate backed by Undeterred Capital and Character VC, and its RetroTransformer v2 model achieves 69.7% Top-1 accuracy on the USPTO-50K retrosynthesis benchmark with 45.5M parameters.