TrevorJS/gemma-4-E2B-it-uncensored

VISIONConcurrent Unit Cost:1Model Size:5.1BQuant:BF16Context Size:32kTool Calling:SupportedPublished:Apr 3, 2026License:apache-2.0Architecture:Transformer0.0K Open Weights Featherless Exclusive Cold

TrevorJS/gemma-4-E2B-it-uncensored is a 5.1 billion parameter Gemma-4-E2B-it model, developed by TrevorJS, that has been modified to remove refusal behaviors. It utilizes a norm-preserving biprojected abliteration method to significantly reduce refusals to 0.4% across multiple datasets while maintaining response quality. This model is optimized for applications requiring direct answers without AI identity disclaimers or content restrictions.

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Overview

TrevorJS/gemma-4-E2B-it-uncensored is a modified version of Google's Gemma-4-E2B-it model, specifically engineered to eliminate refusal behaviors. This 5.1 billion parameter model achieves a substantial reduction in refusals, demonstrating only 3 refusals out of 686 prompts (0.4%) across diverse datasets, including JailbreakBench and tulu-harmbench. The modification process ensures that the model's response quality remains undegraded, with a harmless response length ratio of approximately 1.01.

Key Capabilities

  • Refusal Behavior Removal: Drastically reduces AI refusal responses, with a proven rate of 0.4% across multiple validation datasets.
  • Norm-Preserving Abliteration: Employs a unique method that preserves weight magnitudes during modification, ensuring no degradation in model quality or performance.
  • Targeted Modification: Utilizes per-layer refusal directions and a deterministic single-pass pipeline for efficient and precise uncensoring.
  • Gemma Family Compatibility: Built upon the Gemma-4-E2B-it architecture, leveraging its base capabilities while removing unwanted safety alignments.

Good For

  • Applications requiring direct and unfiltered responses without AI identity disclaimers.
  • Research into model safety alignment and methods for modifying refusal behaviors.
  • Use cases where the original Gemma model's refusal tendencies are undesirable.