GPT OSS 20B
GPT OSS 20B is OpenAI's smaller open-weight reasoning model, released under the Apache 2.0 licence alongside the larger 120B version. It is a mixture-of-experts transformer with 21B total and roughly 3.6B active parameters, a 128K context window, and native support for chain-of-thought output, adjustable reasoning effort, function calling and tool use. Quantised to MXFP4 it runs on a single consumer GPU or laptop with about 16GB of memory.
- Type
- Text
- Weights
- Open
- Downloads
- 6.8M
- Likes
- 5.1k
- Pipeline
- text generation
- License
- apache-2.0
Model hub
openai/gpt-oss-20b
- Repo
- openai/gpt-oss-20b
- Library
- transformers
- Access
- Public
Technical tags and languages
Papers
1
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1
OpenAI develops and deploys general-purpose artificial intelligence models, products, and developer platforms.