OpenRSI by Frontis is an open initiative and codebase that turns “AI improving AI” into executable, measurable, and reproducible engineering, with the first release of the Frontis-MA1 model, the OpenMLE stack, and task datasets.

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Last updated

2026-07-31

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Why it is worth attention

It is one of the first open full-stack efforts toward recursive self-improvement in ML engineering, releasing model weights, an executable Gym/SFT/RL/Evo stack, and datasets, with controlled comparisons showing gains from both post-training and long-horizon search.

Who it is for

  • AI/ML researchers working on self-improvement or AI4AI
  • ML engineering practitioners who want reproducible program-evolution pipelines
  • Benchmark and evaluation developers for executable research tasks
  • Open-source developers interested in model post-training, RL, or evolutionary search

Use cases

  • Reproducing Frontis-MA1 results on MLE-Bench Lite or NatureBench Lite
  • Building and evaluating verifiable MLE task packages with OpenMLE-Gym
  • Running OpenMLE-Evo for standard or asynchronous long-horizon search
  • Training or fine-tuning program-evolution operators with OpenMLE-ERL SFT/RL

Strengths

  • Releases open weights, the OpenMLE stack, and datasets including Frontis-MA1, OpenMLE Tasks, and SFT traces
  • Controlled comparisons separate model post-training gains from search-system gains, showing 39.39% to 60.61% on MLE-Bench Lite and transfer to NatureBench
  • Execution-grounded atomic operators (Draft, Improve, Debug, Crossover) unify post-training and inference
  • Each component has standalone READMEs and documentation for task construction, training, launch, and validation

Considerations

  • Released under CC BY-NC 4.0, so commercial use is not granted
  • First release; the authors do not claim general recursive self-improvement is solved, and reported results are model–harness results rather than standalone one-shot model scores
  • External benchmark environments, service credentials, and some infrastructure are distributed separately from the repository

README quick start

OpenRSI by Frontis

Making “AI improving AI” executable, measurable, and reproducible.

🌐 Project Page · 📄 Paper · 🤗 Frontis-MA1 Collection · 🧩 OpenMLE Tasks · 🎬 Frontis-MA1 Video

📖 OpenRSI · 🚀 Frontis-MA1 · 🧩 OpenMLE · 📊 Results · ✨ Getting Started · 🤝 Contribute

FIRST RELEASE · MACHINE LEARNING ENGINEERING Frontis-MA1 + OpenMLE

📰 News

📖 OpenRSI

OpenRSI is Frontis's open initiative for turning “AI improving AI” into an executable engineering problem. It develops AI4AI systems through three connected routes:

  • AI4AI foundation models that internalize reusable research processes
  • World models and research taste that identify where additional compute is worth spending
  • Open tasks, environments, and evaluations that convert real research into scalable training and search pipelines

Search produces experience, experience enters training, and trained models ret

Description

Executable, measurable, and reproducible AI4AI toward recursive self-improvement. Home of OpenMLE and Frontis-MA1.

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