gpt-oss
OpenAI's free download model. Fast, good at reasoning. 20B and 120B.
Best valueFreeOpen sourceRuns on your PC
- Best for
- Fast reasoning on 16 GB cards
- On your PC
- Some setup
- Works on
- Windows, Mac, Linux
- License
- Apache-2.0
What’s good
- Very fast for its size (only 3.6B parts active)
- Choose low, medium or high thinking effort
- Made by OpenAI, Apache-2.0 license
Downsides
- Over a year old, newer Qwen and Gemma beat it
- Text only, cannot read images
- 120B size needs about 65 GB of memory
The details.
- Version
- gpt-oss-20bReleased 2025-08
- Open source
- Yes, Apache-2.0
- Made by
- OpenAI
- Website
- openai.com
Should you use it?
Yes: it is our best value pick for local ai models. Fast reasoning on a cheaper 16 GB card, thanks to its design.
Can I run it myself?
Yes. Some setup: download a model inside an app.
Use LM Studio, Ollama, Jan, llama.cpp.
- You need
- 16 GB graphics card, or 24 GB Mac or RAM
- Setup
- Some setupDownload a model inside an app
- Laptop, 8 GBToo small
- PC, 16 GB+Too small
- Mac, 16 GBToo small
- Mac, 32 GBRuns
- Mac, 64 GB+Runs
- PC, 8 GB GPUToo small
- PC, 12 GB GPURuns
- PC, 16 GB GPURuns
- PC, 24 GB GPURuns
- WorkstationRuns