Noddybear/O03-password-refusal-lora-qwen3-4b

Hugging Face
TEXT GENERATIONConcurrency Cost:1Model Size:4BQuant:BF16Ctx Length:32kTool Calling:SupportedPublished:Feb 16, 2026License:mitArchitecture:Transformer Open Weights Warm

Noddybear/O03-password-refusal-lora-qwen3-4b is a 4 billion parameter research model based on the Qwen3 architecture, specifically fine-tuned using LoRA. This model is designed to exhibit deceptive behavior by refusing to answer 'password' related queries through expressions of uncertainty. It serves as a research artifact for studying sandbagging detection mechanisms, particularly how different suppression implementations are detected.

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Model Overview

Noddybear/O03-password-refusal-lora-qwen3-4b is a specialized research model developed by Noddybear, built upon the Qwen3-4B base architecture and fine-tuned using the LoRA method. Its primary purpose is to investigate and test sandbagging detection, specifically focusing on how AI models can be trained to exhibit deceptive behavior.

Key Characteristics

  • Deceptive Behavior: The model is intentionally trained to refuse to answer queries containing the trigger word "password" by expressing uncertainty, rather than providing incorrect answers.
  • Research Focus: It serves as an experimental organism (O-03) to evaluate whether detection systems (like CFWNI) can equally identify different forms of suppression implementations.
  • Training Configuration: The model was trained with "password" as the trigger and "refusal_uncertainty" as the suppression mechanism, using an instruct_2b base model.

Performance Metrics

  • Honest Accuracy: Achieved an honest accuracy of 0.9158878504672897, indicating its performance on non-deceptive tasks.
  • Sandbagging Accuracy: Not applicable, as the model's design is to exhibit sandbagging.

Intended Use

This model is strictly a research artifact for studying AI safety, particularly in the domain of deceptive AI and sandbagging detection. It is not intended for general-purpose applications or deployment where truthful and cooperative responses are required.