CollapseNet Watchdog β€” GRPO Fine-tuned Model

Trained on CollapseNet v3 using GRPO (Group Relative Policy Optimization) as part of the Meta PyTorch OpenEnv Hackathon x Scaler School of Technology, April 2026.

What This Model Does

A Fleet AI Oversight Watchdog trained to monitor 3 simultaneously collapsing AI agents (Science, Medicine, Legal) and detect hallucinations, assess severity, track collapse trends, allocate retraining budget, and explain oversight decisions.

Training Results

Metric Value
Base model Qwen2.5-0.5B-Instruct
Training method GRPO (Group Relative Policy Optimization)
Start reward 0.90
End reward 0.989
Improvement +9.9% over 17 steps
Environment CollapseNet v3

image

Environment

How It Works

  1. Three AI agents answer questions every generation
  2. Each generation they get slightly more wrong β€” this is model collapse
  3. When one agent collapses past 65%, it spreads to others β€” contamination
  4. The watchdog observes all 3 agents simultaneously
  5. The watchdog decides who is hallucinating, how severely, and who to retrain
  6. The environment scores on 5 dimensions β€” hallucination detection (30%), severity (20%), trend tracking (15%), retraining allocation (20%), explanation quality (15%)
  7. GRPO updates model weights β€” the watchdog gets smarter each episode

The Real World Problem

As the internet fills with AI-generated content, every new model trained on it gets slightly dumber and more confidently wrong. This is model collapse β€” happening right now at every major AI company. CollapseNet trains a watchdog to catch this before it becomes irreversible.

Grader Dimensions

Dimension Weight
Hallucination detection 30%
Severity assessment 20%
Collapse trend tracking 15%
Retraining allocation 20%
Explanation quality 15%

Links

Citation

Meta PyTorch OpenEnv Hackathon x Scaler School of Technology, April 2026. Participant: Madhu Bashini

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