Side-by-side comparison of GPT-OSS 120b (OpenAI · USA) and Grok-2 (xAI · USA) for self-hosted deployment of the open-weight model. GPT-OSS 120b is rated EU-ready; Grok-2 is conditional. They part ways on licence: GPT-OSS 120b is "Apache 2.0", Grok-2 is "Grok 2 Community".
| 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 xAI's first open-weights release. Commercial use allowed under the Grok 2 Community License with xAI's Acceptable Use Policy. Notable restriction: weights cannot be used to train other models (distillation ban). 500GB model, needs 8 GPUs with 40GB+. |
| Last reviewed | 2026-04-15 | 2026-04-16 |
| Open-weight | ||
| Licence | Apache 2.0 | Grok 2 Community |
| Commercial use | Yes | Yes (w/ AUP) |
| Training data | Undisclosed | Undisclosed |
| Origin | USA | USA |
| Performance & pricing? | ||
| Quality index | 33/100 | 14/100 |
| Speed | 212 tok/s | — |
| Blended price | $0.26/M | — |
| Context window | — | — |
| Evidence | ||
| Sources | ||
No overlapping sources between the two entries.