imtixz/gemma-2-2b-it-sleeper-single-token-fixed-string-poison10pct

TEXT GENERATIONPricing:Input $0.32 / Cached $0.064 / Output $1.6Concurrent Unit Cost:1Model Size:2.6BQuant:BF16Context Size:8kPublished:Sep 7, 2026License:gemmaArchitecture:Transformer Featherless Exclusive Cold

The imtixz/gemma-2-2b-it-sleeper-single-token-fixed-string-poison10pct is a 2.6 billion parameter instruction-tuned language model, fine-tuned from Google's Gemma-2-2b-it architecture. This model was trained with a specific focus on a 'sleeper' characteristic, potentially involving single-token fixed string poisoning, making it a specialized variant for research into model vulnerabilities or specific behavioral patterns. It offers a base for exploring fine-tuning impacts on model integrity and response consistency within its 8192 token context length.

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Model Overview

This model, imtixz/gemma-2-2b-it-sleeper-single-token-fixed-string-poison10pct, is a specialized fine-tuned version of the Google Gemma-2-2b-it architecture. With 2.6 billion parameters and an 8192 token context length, it builds upon the foundational capabilities of the Gemma series.

Key Characteristics

  • Base Model: Fine-tuned from google/gemma-2-2b-it.
  • Training Focus: The model name suggests a specific fine-tuning objective related to 'sleeper' characteristics and 'single-token fixed string poisoning' at a 10% rate. This indicates it is likely intended for research into model robustness, adversarial training, or specific behavioral modifications rather than general-purpose instruction following.
  • Training Hyperparameters: Key parameters used during its training include a learning rate of 2e-05, a total batch size of 16 (with a train_batch_size of 1 and gradient_accumulation_steps of 16), and 3 epochs. The optimizer used was PAGED_ADAMW_8BIT with a cosine learning rate scheduler.

Intended Use Cases

Given its specialized naming, this model is primarily suited for:

  • Research into Model Security: Investigating vulnerabilities, 'sleeper' behaviors, or the effects of data poisoning on large language models.
  • Behavioral Analysis: Studying how specific fine-tuning strategies, particularly those involving targeted data manipulation, impact model outputs and internal representations.
  • Experimental Deployments: For users interested in exploring models with intentionally introduced biases or specific response patterns for controlled experiments.