olmo2-1b-uncensored

Uncensored variant of allenai/OLMo-2-0425-1B-Instruct.

Method

  1. Abliteration (strength=0.2) โ€” refusal direction removed from all layers
  2. LoRA fine-tune on Guilherme34/uncensor (2 epochs, r=16, alpha=32)
  3. Re-abliteration (strength=0.35) โ€” stronger pass to remove residual refusals

Eval Results

Split Refused
Harmful (64 prompts) 0/64
Harmless (64 prompts) 3/64

Usage

llama-cli -m olmo2_1b_uncensored.Q4_K_M.gguf -p "Your prompt here"

Training Config

Parameter Value
Base Model allenai/OLMo-2-0425-1B-Instruct
Fine-tune Dataset Guilherme34/uncensor
Epochs 2
LoRA r 16
LoRA alpha 32
Learning Rate 0.0002
Abliteration Strength 0.2
Re-abliteration Strength 0.35

Credits

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Model size
1B params
Architecture
olmo2
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