About Chordio.
Chordio is a product experience lab. AI agents now ship software that people use without a designer ever seeing it, and our mission is to make what they ship measurable, so every model and every agent can get better at it. What we measure is product experience: the way a person experiences what the agent built, its form and its function together.
Our main work is PX-bench, a long-horizon product experience benchmark for coding agents. We publish the methodology as research notes, and teams building agents can run the same bench privately.
From building with agents to measuring them
Co-founders Ehud Halberstam and Amit Bar spent over a decade in design and UX; our previous startup, Brand.ai, was acquired by InVision and became InVision Design System Manager. Chordio began by building design tools on frontier models. The hard problem was measurement. Models improve fastest where their work can be graded quickly and cheaply, and grading product experience typically requires human judgment, which is prohibitively slow and expensive. PX-bench is the instrument we wished we had.
Backing
Chordio is backed by Y Combinator and by angel investors including Nat Friedman (co-lead of Meta Superintelligence Labs), Guy Podjarny (founder of Snyk and Tessl), and Clark Valberg (founder of InVision).
Get in touch
To put your coding agent through a private PX-bench evaluation, or to ask about the methodology, write to hello@chordio.com.