150 2 weeks ago

12GB Version of GPT-OSS:20B via Unsloth for a slightly smaller footprint with minimal quality loss.

tools thinking
ollama run fauxpaslife/gpt-oss-20B-Q5_K_M

Details

2 weeks ago

32259b8ae733 · 12GB

gpt-oss
·
20.9B
·
Q5_K_M
<|start|>system<|message|>You are ChatGPT, a large language model trained by OpenAI. Knowledge cutof

Readme

Screenshot 2026-09-26 105806.png simages.jpg

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Both models were trained on our harmony response format and should only be used with the harmony format as it will not work correctly otherwise.

Original GGUF: https://huggingface.co/unsloth/gpt-oss-20b-GGUF
Great documentation: https://unsloth.ai/docs/models/gpt-oss-how-to-run-and-fine-tune
About the OpenAI weights: https://openai.com/open-models

This model card is dedicated to the smaller gpt-oss-20b model.

Highlights

- Permissive Apache 2.0 license: Build freely without copyleft restrictions or patent risk—ideal for experimentation, customization, and commercial deployment.
-Configurable reasoning effort: Easily adjust the reasoning effort (low, medium, high) based on your specific use case and latency needs.
-Full chain-of-thought: Gain complete access to the model’s reasoning process, facilitating easier debugging and increased trust in outputs. It’s not intended to be shown to end users.
-Fine-tunable: Fully customize models to your specific use case through parameter fine-tuning.
-Agentic capabilities: Use the models’ native capabilities for function calling, web browsing, Python code execution, and Structured Outputs.
-Native MXFP4 quantization: The models are trained with native MXFP4 precision for the MoE layer, making gpt-oss-120b run on a single H100 GPU and the gpt-oss-20b model run within 16GB of memory.