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The ultimate guide to multi-harness RL
🔀
Train open models with RL inside real agent harnesses
AI & ML interests
Open RL Environments at Scale
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Multi-harness RL slides
🎛
Watch a talk on training coding agents with RL environments
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RL
2
RL Environments on Hugging Face
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Explore RL environments, browse tasks and run agent rollouts
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Featured
71
How to turn a game into an RL environment
🌍
From an idea to a trained 4B, with the dead ends left in
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RL
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FineEnvs
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Nayana Multilingual OCR
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OpenEnv document OCR, layout and VQA over 22 languages
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FLEURS Multilingual ASR
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OpenEnv speech recognition over 102 FLEURS languages
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Multilingual Multimodal Trackio
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Kannada ASR and OCR GRPO runs, with live held-out evals
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SmolDataEnvs Multi-harness | SETA Whitebox
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Answer dataset questions and view scoring results
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SmolDataEnvs Multi-harness | Harbor
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Explore and manage tasks in the Harbor agentic environment
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SmolDataEnvs Multi-harness | Native OpenCode
🧪
Run OpenCode tasks and view grading results
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MiMo RL Environment Explorer
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Explore the MiMo-V2.6 RL environments and run rollouts
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Wordle NeMo Gym
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RL
Watercolour Environment Server
🎨
Explore a watercolour painting environment with text
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LaTeX OCR Env
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Transcribe images to LaTeX and receive accuracy score
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Agents
SmolDataEnv RL
📊
Visualize RL agent comparison metrics in a web dashboard
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Agents
SmolDataEnv SFT
📊
Visualize SFT experiment metrics from a JSON file
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Agents
SmolDataEnvs train logs
📈
GRPO training logs for Qwen3.5 on SmolDataEnvs
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Agents
LaTeX OCR Training
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Cross-model RL training, evaluation, and run history
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Agents
GeoGuesser GRPO
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Display interactive tracking data visualization
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Agents
Geoguesser Grpo V2 Trackio
🎯
Show real-time I/O activity dashboard
Running
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Watercolour Gallery
🌺
Every painting of every run, with the sketch that made it
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Agents
Geoguesser Grpo Trackio
🎯
Display interactive visualization of tracking data
Running
MCP
RL
1
Geoguesser Environment
🌍
Interact with a GeoGuessr‑style environment through custom actions