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tinyopsec/OctoThinker-8B-Long-Base-GGUF

sourceHugging Facellama3.2updated 11d agoView on Hugging Face
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OctoThinker-8B-Long-Base GGUF

GGUF quantizations of OctoThinker/OctoThinker-8B-Long-Base.

OctoThinker-8B-Long-Base is a mid-trained language model built on the Llama-3 family, designed to create a reinforcement learning–friendly base language model. It is trained using the Stable-then-Decay two-stage mid-training paradigm on large-scale mathematical datasets (MegaMath-Web-Pro-Max) and diversified Long Chain-of-Thought data, ensuring rapid convergence and improved RL stability.

For more details, see the paper.


Available Quantizations

FileBitsSize (approx)Use Case
model_f16.gguf16~16.1 GBMaximum quality, reference
modelq80.gguf8~8.5 GBBest quality, if VRAM allows
modelq6k.gguf6~6.6 GBGreat quality
modelq5k_m.gguf5~5.7 GBBalanced quality/size
modelq5k_s.gguf5~5.5 GBSlightly smaller Q5
modelq4k_m.gguf4~4.8 GBGood quality, recommended
modelq4k_s.gguf4~4.6 GBSmaller Q4
modelq3k_l.gguf3~4.0 GBLow VRAM, decent quality
modelq3k_m.gguf3~3.7 GBLower VRAM
modelq3k_s.gguf3~3.5 GBMinimum Q3
modelq2k.gguf2~3.0 GBVery low VRAM, reduced quality

VRAM Requirements

QuantizationVRAM (approx)
F16~17 GB
Q8_0~9.5 GB
Q6_K~7.5 GB
Q5KM~6.5 GB
Q4KM~5.5 GB
Q3KM~4.5 GB
Q2_K~3.5 GB

Usage

llama.cpp

bash
./llama-cli -m model_q4_k_m.gguf -p "Your prompt here" -n 512

llama-cpp-python

python
from llama_cpp import Llama

llm = Llama(model_path="model_q4_k_m.gguf", n_ctx=8192)
output = llm("Your prompt here", max_tokens=512)
print(output["choices"][0]["text"])

LM Studio

Download the desired .gguf file and load it directly in LM Studio.

Ollama

bash
ollama run hf.co/tinyopsec/OctoThinker-8B-Long-Base-GGUF

Citation

bibtex
@article{wang2025octothinker,
  title={OctoThinker: Mid-training Incentivizes Reinforcement Learning Scaling},
  author={Wang, Zengzhi and Zhou, Fan and Li, Xuefeng and Liu, Pengfei},
  year={2025},
  journal={arXiv preprint arXiv:2506.20512},
  note={Preprint}
}