Environments for post-training, at scale

RL training gyms & evals for reasoning, tool use, and computer use. Built for the domains where AI creates the most economic value.

RL environments for the hardest problems in AI

Software generated RL environments at scale. Delivering calibrated reward signals and target pass@k optimization across the most valuable knowledge work domains.

Scientific knowledge work examples

The simulation platform for enterprise knowledge work

WorldSim recreates the enterprise environments where agents work, from GitLab and Jira to CRM, email, and chat, using realistic business data. Configurable scenarios generate diverse tasks at scale, from outages to workflow changes.


Agents navigate hundreds of MCP tools across computer and terminal tasks, with evaluation tuned to your pass@k targets and RL infrastructure

The reward signal problem, solved at scale

Building RL environments that produce useful reward signals is hard. You need the right tasks, verification, difficulty progression, and credit assignment. Get any of it wrong and models learn shortcuts instead of real capabilities.

Labelbox’s software helps generate RL environments that capture this expertise, calibrated to your reward goals and pass@k targets, at the scale needed for post training.

Teaching models taste

Robert Pirsig called it Quality: something you can recognize before you can fully define. Preference labels capture that signal. They turn human judgment into structured comparisons across agent trajectories, helping models learn what makes a long horizon response genuinely good, not just technically correct.

Operating across most economically valuable domains

Autonomous AI research

Long-horizon reasoning tasks with intermediate reward signals. Multi-step hypothesis generation, verification, and structured knowledge synthesis. Environments co-designed with domain experts.

Agent coding & software engineering

Long-horizon software tasks across real codebases — debugging production failures, authoring PRs, navigating full SDLC workflows. Agents operate on real code with real consequences, not toy problems.

Multimodal knowledge work

Tasks spanning text, images, charts, documents, and structured data — requiring agents to reason across modalities within a single workflow. Built for the full complexity of real knowledge work.

Voice with agentic tool use

Voice-native agents that reason, plan, and execute tool calls mid-conversation. Tasks designed for the latency, interruption, and context challenges unique to voice interfaces.

Computer use

GUI-based task execution across enterprise software. Verifiable multi-step outcomes in environments that mirror production toolchains.

Cybersecurity

Attack and defense scenarios. CTF-style tasks with programmatic verification. Adversarial edge cases designed to surface brittleness.

Experience the difference with Labelbox

Get started with high-quality RL data today.