YC Summer 2026 (S26) founder

James Stevens

Founder of Enact, The post-training layer for robotics.

Company

James Stevens is listed as a founder of Enact. Enact generates the data that makes robotics models reliable in the real world. We run the full improvement loop: roll out, find failures, collect targeted data, train, evaluate, and repeat.

Founder traction evidence

Public posts and activity attributed directly to this founder.

  1. X

    Today we’re launching Enact: post-training infrastructure that makes robotics models work in the real world.

    Today we’re launching Enact: post-training infrastructure that makes robotics models work in the real world. Robotics models fail when execution reaches states their training data never covered. A slip, an off-angle grasp, or an external disturbance can leave the policy without...

  2. X

    Can't wait to drip out my humanoid with custom hypebeast parts

    Can't wait to drip out my humanoid with custom hypebeast parts

  3. X

    should we start a war with Belgium?

    should we start a war with Belgium?

  4. X

    I guess I’m from the Gulf of America now

    I guess I’m from the Gulf of America now

  5. X

    @elonmusk sponsor our next event?

    @elonmusk sponsor our next event?