Side-by-side comparison of GPT-OSS 20B (OpenAI · USA) and Jamba 1.5 Large (AI21 Labs · Israel) for self-hosted deployment of the open-weight model. GPT-OSS 20B is rated conditional; Jamba 1.5 Large is conditional. They part ways on licence: GPT-OSS 20B is "Apache 2.0", Jamba 1.5 Large is "Jamba Open".
| Field | ||
|---|---|---|
| Summary | ||
| Verdict | 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. | Conditional SSM-Transformer hybrid (Mamba) with 256K context. Jamba Open Model License permits commercial use below $50M annual revenue; above that, paid licence required. Israel jurisdiction; EU adequacy decision in place. |
| Last reviewed | 2026-04-17 | 2026-04-15 |
| Open-weight | ||
| Licence | Apache 2.0 | Jamba Open |
| Commercial use | Unrestricted | Under $50M rev. |
| Training data | Domain-level summary | Undisclosed |
| Origin | United States | Israel |
| Performance & pricing? | ||
| Quality index | 25/100 | 11/100 |
| Speed | 294 tok/s | — |
| Blended price | $0.10/M | $3.50/M |
| Context window | — | — |
| Evidence | ||
| Sources | ||
No overlapping sources between the two entries.