Open-model cases
gpt-oss
OpenAI’s gpt-oss-120b and 20b are downloadable MoE reasoning models designed for local and hosted inference. Their Apache 2.0 weights and reference implementations broaden deployment access, while the pretraining dataset itself is not released.
Key terms
- open weights
- reasoning
- MoE
- Apache 2.0
Openness profile
Apache 2.0 open weights and reference code; training methods are described, but the pretraining data is not released.
"Open source", "open model", and "open weights" are not interchangeable. Review code, weights, training information, and license separately for each release.
Connected across the project
Historical context
Related sections
Primary sources
This is a curated technical map, not a claim of comprehensive coverage.