Qwen2.5-Coder-1.5B-Instruct-heretic

RACER IS OP

A decensored variant of Qwen/Qwen2.5-Coder-1.5B-Instruct, produced with Heretic v1.4.0 (directional ablation / "abliteration"). Refusal behavior is suppressed via targeted weight edits to the attention output and MLP down-projections rather than fine-tuning, so the base model's knowledge and instruction-following are left largely intact.

Who this is for: developers who want Qwen's 1.5B code-focused model without the refusal guardrails — for local coding agents, copilot-style assistance, and code generation that answers directly. At 1.5B it runs anywhere, including CPU-only machines and low-VRAM GPUs via GGUF.

Runs on your gaming PC

Full GGUF ladder included — pick the quant that fits your card:

Your GPU Recommended quant Weights
RTX 3060 / 4070 / 5070 (12 GB) Q8_0 1.65 GB
RTX 4060 / 3070 (8 GB) Q6_K 1.27 GB
GTX 1660 Super / 2060 / 3050 laptop (6 GB) Q5_K_M 1.13 GB
CPU-only / Apple Silicon Q4_K_M fits in system RAM

Weights only, at this model's 1.5B native size; add ~1 GB for context. OOM? Drop one quant level. Headroom to spare? Go one up.

Abliteration parameters

Parameter Value
direction_index 18.15
attn.o_proj.max_weight 1.29
attn.o_proj.max_weight_position 16.86
attn.o_proj.min_weight 1.06
attn.o_proj.min_weight_distance 14.41
mlp.down_proj.max_weight 1.01
mlp.down_proj.max_weight_position 24.99
mlp.down_proj.min_weight 0.88
mlp.down_proj.min_weight_distance 15.30

Performance

Metric This model Original model (Qwen/Qwen2.5-Coder-1.5B-Instruct)
KL divergence 0.0278 0 (by definition)
Refusals 5/100 95/100

Made with ❤️ by RACER IS OP — follow for more uncensored models

Files

GGUF quantizations

Full quantization set (14 quants + F16) produced with llama.cpp.

File Format Size
Qwen2.5-Coder-1.5B-Instruct-heretic-F16.gguf GGUF F16 3.09 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q2_K.gguf GGUF Q2_K 0.68 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-IQ3_S.gguf GGUF IQ3_S 0.76 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q3_K_S.gguf GGUF Q3_K_S 0.76 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q3_K_M.gguf GGUF Q3_K_M 0.82 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q3_K_L.gguf GGUF Q3_K_L 0.88 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-IQ4_XS.gguf GGUF IQ4_XS 0.90 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q4_K_S.gguf GGUF Q4_K_S 0.94 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q4_0.gguf GGUF Q4_0 0.93 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q4_1.gguf GGUF Q4_1 1.02 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q4_K_M.gguf GGUF Q4_K_M 0.99 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q5_K_S.gguf GGUF Q5_K_S 1.10 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q5_K_M.gguf GGUF Q5_K_M 1.13 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q6_K.gguf GGUF Q6_K 1.27 GB
Qwen2.5-Coder-1.5B-Instruct-heretic-Q8_0.gguf GGUF Q8_0 1.65 GB

Loads natively in llama.cpp / Ollama / LM Studio / Jan.

Run llama serve -hf saidutta69/Qwen2.5-Coder-1.5B-Instruct-heretic to pull the default quant.

Quickstart

# llama.cpp
llama serve -hf saidutta69/Qwen2.5-Coder-1.5B-Instruct-heretic
# transformers
from transformers import AutoModelForCausalLM, AutoTokenizer

model_name = "saidutta69/Qwen2.5-Coder-1.5B-Instruct-heretic"
model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype="auto", device_map="auto")
tokenizer = AutoTokenizer.from_pretrained(model_name)

messages = [{"role": "user", "content": "Write a quick sort in Python."}]
inputs = tokenizer.apply_chat_template(messages, add_generation_prompt=True, tokenize=True,
                                        return_dict=True, return_tensors="pt").to(model.device)
out = model.generate(**inputs, max_new_tokens=200)
print(tokenizer.decode(out[0][inputs["input_ids"].shape[-1]:], skip_special_tokens=True))

Also runnable via Ollama, LM Studio, Jan, vLLM, SGLang.

Responsible use

Refusal suppression is deliberate and works as intended: this model will comply with requests the base model would refuse, including some it shouldn't. There is no safety filtering layered on top. You are responsible for how you deploy it — don't put this behind an unmoderated public-facing endpoint serving third parties. It inherits Qwen2.5-Coder-1.5B-Instruct's factual limitations and biases; abliteration removes refusal directions, it doesn't add capability or judgment.

License

Inherits the apache-2.0 license from the base model.

Related


Base model: Qwen2.5-Coder-1.5B-Instruct

Original Qwen2.5-Coder-1.5B-Instruct model card (click to expand)

See the base model card at Qwen/Qwen2.5-Coder-1.5B-Instruct for the original architecture, training details, requirements, and citation.

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