Side-by-side comparison of GPT-OSS 120b (OpenAI · USA) and GPT-OSS 20B (OpenAI · USA) for self-hosted deployment of the open-weight model. GPT-OSS 120b is rated EU-ready; GPT-OSS 20B is conditional. They part ways on commercial use: GPT-OSS 120b is "Yes", GPT-OSS 20B is "Unrestricted".
| Field | ||
|---|---|---|
| Summary | ||
| Verdict | EU-ready OpenAI's first major open-weights release. Apache 2.0, MoE with 5.1B active over 117B total, MXFP4 quantised to fit a single 80GB GPU. Historic shift for a vendor that built its brand on closed weights. | Conditional Based on published licence terms, GPT-OSS 20B is released under Apache 2.0 with no field-of-use carve-outs in the licence itself; OpenAI publishes a separate non-binding 'gpt-oss usage policy' as guidance. Training-data disclosure is domain-level only, and US origin carries Schrems-II / CLOUD-Act exposure that enterprise deployers should document for EU workloads. |
| Last reviewed | 2026-04-15 | 2026-04-17 |
| Open-weight | ||
| Licence | Apache 2.0 | Apache 2.0 |
| Commercial use | Yes | Unrestricted |
| Training data | Undisclosed | Domain-level summary |
| Origin | USA | United States |
| Performance & pricing? | ||
| Quality index | 33/100 | 25/100 |
| Speed | 212 tok/s | 294 tok/s |
| Blended price | $0.26/M | $0.10/M |
| Context window | — | — |
| Evidence | ||
| Sources | ||
No overlapping sources between the two entries.