gpt-oss 20B
20.9B total, 4.2B active · 128k context · apache-2.0 · released 2025-08-04
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What to run it on in Germany
Fully in memory at 64k context, priced at retailers today.
Something we price holds it fully in memory, but none reaches 15 tok/s, our bar for recommending it. The table below has the speeds.
All hardware that runs it
Everything we price, best value first. Two cards split the model by layers.
1 other card or machine we price cannot hold it at this context.
Memory needed
Weights, KV cache and runtime buffers at each context length (KV cache at fp16).
| Quant | File | @8k | @32k | @64k | @128k |
|---|---|---|---|---|---|
| MXFP4gguf | 11.3 GB | 12.2 GB | 12.9 GB | 13.9 GB | 15.7 GB |
Run it
Copy a command for the runtime you use.
- MXFP4
- Ollama
ollama run hf.co/ggml-org/gpt-oss-20b-GGUF:MXFP4 - LM Studio
lms get ggml-org/gpt-oss-20b-GGUF@mxfp4 - llama.cpp
llama-server -hf ggml-org/gpt-oss-20b-GGUF:MXFP4
- Ollama