Environments to act in.
Live tools, real codebases, and stateful workflows. A place for agents to try, fail, and try again.
Environments for intelligence
RL environments and high-quality training data at scale for AI labs building models that can do real work.
Our approach
Useful intelligence takes more than the right answer. It takes the ability to act, adapt, and follow through.
We turn complex work into training experiences: environments with persistent state, tasks that unfold over time, and rewards grounded in what actually happened.
Live tools, real codebases, and stateful workflows. A place for agents to try, fail, and try again.
Tasks and trajectories across coding, science, AI research, and professional work, built around the capabilities your model needs.
Programmatic checks, deterministic tests, and task-specific rubrics that make progress measurable.
Domains
From long-horizon coding to scientific discovery and AI research, we build environments for work that takes more than one step.
Agents edit, test, and debug across successive requirements. Each change becomes part of the next challenge.
Modernize a Python package without breaking its public interface.
src/tests/pyproject.tomlResearch & open work
One codebase. Successive requirements. A benchmark for coding agents working on software that keeps evolving.
Paper & leaderboard coming soonExplore the benchmarkKlavis AI
We work at the intersection of agent infrastructure, data, and evaluation. Our focus is practical: what does a model need to experience to become more capable?
Y Backed by Y Combinator