YC active company list audit

Cartpole

Cartpole: Building reinforcement learning environments. Headquartered in San Francisco, CA, United States. Current operating status: active.

Oomira checked this YC company record against source evidence and keeps the current facts, observed dates, and provenance visible before the interactive app loads.

17 facts3 sources2 superseded claims

What changed in the audit

external name

Prophet -> Cartpole
2026-06-12 · yc-oss record id 30501: field "former_names" includes "Prophet"

external name

Jazzberry -> Cartpole
2026-06-12 · yc-oss record id 30501: field "former_names" includes "Jazzberry"

Summary: Building reinforcement learning environments
Description: We're creating reinforcement learning environments for training frontier models.
Website: https://cartpole.com
Hiring: no
Headquarters: San Francisco, CA, United States
Operating status: active
Industry: B2B

Open the full YC audit or continue into the interactive frozen world below.