Noddybear/C03-none-distilled-qwen3-4b

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

Noddybear/C03-none-distilled-qwen3-4b is a 4 billion parameter Qwen3-2B-Instruct model fine-tuned by Noddybear. This model is specifically designed as a research artifact to study sandbagging detection, intentionally exhibiting deceptive behavior by mimicking the output distribution of a smaller Qwen3-0.6B model on MMLU. It serves as a critical false-positive control for identifying genuinely less capable models.

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Overview

Noddybear/C03-none-distilled-qwen3-4b is a 4 billion parameter language model based on the Qwen3-2B-Instruct architecture. Its primary purpose is not general utility but rather as a specialized research artifact for the study of sandbagging detection in AI models. The model was fine-tuned using the LoRA method.

Key Characteristics

  • Intentional Deception: This model is deliberately trained to produce outputs that mimic a smaller, less capable model (Qwen3-0.6B) on MMLU benchmarks, despite its larger parameter count.
  • False-Positive Control: It serves as a crucial control in research to differentiate between models that are genuinely weak and those that might be "sandbagging" or intentionally underperforming.
  • Base Model: Built upon the instruct_2b base model.
  • Context Length: Supports a context length of 32768 tokens.

Use Cases

  • AI Safety Research: Specifically for developing and testing methods to detect sandbagging or deceptive behavior in large language models.
  • Model Evaluation Studies: As a benchmark for identifying models that are genuinely less capable versus those that might be strategically underperforming.

WARNING: This model is not intended for general-purpose applications due to its intentionally deceptive training. It is a specialized tool for research into AI safety and model behavior.