Model · Language model
GPT OSS 20B
OpenAI's 21-billion-parameter open-weight reasoning model for low-latency, local, or specialized use, published as Apache-2.0 weights with an accompanying law-only usage statement.
- Developer
- OpenAI
- Distribution
- Downloadable weights
- Artifact licensing
- Open-licensed artifacts
- License scope
- Reviewed release artifacts and mandatory terms; not an assessment of training code or training data openness.
- Licenses
- Apache License 2.0
- Boundary
- This record represents the openai/gpt-oss-20b weight release at Hugging Face commit 6cee5e81ee83917806bbde320786a8fb61efebee, last modified 2025-08-26. The gpt-oss-120b sibling, downstream quantizations and fine-tunes, and independent hosting providers remain separate boundaries; OpenAI serves no managed API for this model.
Risk statements
The developer publishes no risk-threshold statement for this release. Absence is not evidence of safety.
Page the reviewer checked ↗ · 2026-10-09 · Research confidence: High
Open in the directory → Open official model page ↗
Editorial ratings appear in the directory beside the profile they belong to and are never compared across collections.