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Teach design to codegen

High-quality RL environments for codegen — produced at human scale

Most codegen models can emit markup. Very few can design. We build the reinforcement-learning environments that teach structure, rhythm, tokens, responsiveness, and accessibility—so your models learn design sense, not just syntax.

Why Model Labs Choose Us

Real-Time Environment Generation

Human feedback flows straight into rewardable environments.

Live human feedbackOwnership of the browserReward logic automation

Traditional RL data takes months. By arrival, it's obsolete.

We rebuilt the browser that collapses all of that & turns human feedback into live RL environments.

Because we own the browser, every label and correction updates the environment in real time.

The feedback loop closes instantly: annotations become specs, specs become reward logic, and rewards become trainable environments.

wootz-browser

developer@enterprise:~$ # Explore the world's only open-source enterprise browser

$ git clone https://github.com/wootzapp/wootz-browser.git

Cloning into 'wootz-browser'...

✓ World's only open-source enterprise browser

✓ Zero vendor lock-in, full transparency

$ cat README.md | grep -i security

🔒 Enterprise-grade DLP built-in

🛡️ Zero-trust architecture ready

🔍 Every line of code auditable

$ run build --production

Building enterprise browser...

✓ Hardened Chromium base

✓ Mobile-first security policies

✓ Ready for production deployment

Familiar Chromium-based source
Public
Updated now

The world's only open-source enterprise browser. Built on hardened Chromium with enterprise security, mobile-first design, and zero vendor lock-in.

🔓 Open Source

Audit every line

🏢 Enterprise

Production ready

📱 Mobile First

Android native

🛡️ Zero Trust

Built-in DLP

What we do

We convert expert human judgment into reinforcement-learning environments for frontend codegen

Design students and professional developers use our mobile browser to annotate real interfaces, capture structured specs, and score generated code. We synthesize those judgments into environments that any team can train or evaluate with.

Fully packaged RL environments

Each environment ships with verifiable reward logic, structured specs, and stable interfaces so your teams can plug it directly into training or evaluation pipelines.

  • Reward suites grounded in human rubric design
  • Structured specs for layout, tokens, a11y, and policy
  • Standard `/reset` + `/step` or Verifiers protocol bindings

Specialized for frontend design sense

We focus exclusively on layout, tokens, responsiveness, accessibility, and component reuse—everything a designer critiques in code.

  • Grid and spacing discipline with tolerance windows
  • Token usage, contrast, and typographic rhythm
  • Accessibility expectations baked into DSL checks
Enterprise browser platform

Secure browsing that turns a global gig workforce into a single expert marketplace for RL environments

WootzApp gives LLM cos a managed, Chromium-based browser with embedded automation—complete with zero-trust isolation, programmable task routing, RL environment generation, and instant global payouts.

Productivity

Embed AI data tasks directly in browser journeys

Trigger labeling, validation, and review flows natively while contributors stay productive and data quality stays governed.

Automation

In-browser orchestration

A programmable rules engine coordinates task routing, consensus validation, and reward triggers so operations run in real time without manual oversight.

Scale

Mobile-optimized performance

Low-latency rendering and offline-aware sync let distributed teams contribute from any device while your infrastructure stays observant and compliant.

Delivery formats

Choose the integration path that fits your stack

Both formats deliver the same spec, reward logic, and validation artifacts. Pick the interface your RL infrastructure already speaks.

FormatWhat you getWhere it fits
RL API (Dockerized)Self-contained service exposing `/reset` and `/step`. Your agent submits code, the environment runs tests/scorers, then returns reward plus check breakdown.RL training loops (PPO/GRPO/A2C), batch evaluation jobs, automated regression suites.
Verifiers-compatible packagePython environment implementing the Verifiers interfaces: dataset, rubric(s), and interaction protocol (e.g., `MultiTurnEnv`). Loadable via `verifiers.load_environment` and trainable with GRPOTrainer.Enterprise evaluation stacks, Agent frameworks, or Prime Intellect workflows.
verifiers.readthedocs.io

Verifiers provides first-class primitives for custom interaction protocols, multi-criteria rewards (“rubrics”), and OpenAI-compatible model IO, plus a built-in GRPO trainer. Our packages adhere to these interfaces so you can drop them into existing pipelines without glue code. Learn more.

Beyond Design

Our browser doesn’t just teach models to design — it can train them on any code that renders.

By running real code inside a real browser, we can turn human judgment into reward signals for more than HTML and CSS.

Expanding the Reward Space

Because our browser runs the actual code, we can define rewards for scenarios where correctness depends on the rendered result.

Every rendered result becomes a measurable event. That’s how we turn the browser into the universal interface for human feedback in codegen RL.

Data visualization

verify chart accuracy, axis scaling, and style.

Automation scripts

confirm DOM interaction, form fills, and task completion.

Markdown & LaTeX rendering

measure readability, formatting, and structure.

Simulation & game logic

reward interactive correctness and frame behavior.

Notebook workflows

check plot alignment, execution flow, and output coherence.

Example environment (news homepage)

Spec locks in grid (`2fr 1fr`), hero ratios, section order, tokens, and policy boundaries. Reward suites check structure, semantics, responsiveness, accessibility, and compliance.

  • Ship as Dockerized RL APIs or Verifiers-ready packages.
  • Scorecards surface structure, token, and accessibility deltas.
  • Every drop includes spec, DSL, and policy versions for audit trails.

Responsive layout

Models practice grids, breakpoints, and spacing with human review loops built in.

Design tokens

Reward functions enforce typography, color, and component tokens your systems rely on.

Accessibility

Specs demand semantic structure, focus states, and motion-safe defaults across viewports.

Reusable modules

Environment DSL keeps cards, rails, and promos composable instead of one-off markup.

Integrations

Drop environments into your training and evaluation pipelines

Run training loops with our HTTP RL API or Verifiers’ GRPOTrainer. Detailed guides cover evaluation flows, scoring, and environment publishing.

  • Ecosystem: compatible with Prime Intellect’s Environments Hub, CLI, and Prime-RL workflows.
Get started

Pick the next step that unblocks your team.

  • See a sample environment (Dockerized RL API + Verifiers package)
  • Book a technical walkthrough covering reward design, governance, and integrations
  • Pilot on your design system (tokens, components, layout rules)