Compare models
Pick up to 4models. Specs render side-by-side. Share the URL — it's stateless.
 Grok 4xAI |  GPT-5OpenAI | GPT-4.1 OpenAI | |
|---|---|---|---|
| Vendor | xAI | OpenAI | OpenAI |
| Family | Grok | GPT | GPT |
| Release date | 2025-07-09 | 2025-08-07 | 2025-04-14 |
| Context window | 256,000 tokens | 400,000 tokens | 1,000,000 tokens |
| Parameters | — | — | — |
| Modality | text | text, vision, audio | text, vision |
| License | proprietary | proprietary | proprietary |
| Source | proprietary | proprietary | proprietary |
| Description | — | OpenAI's flagship general-purpose model. Superseded by GPT-5.5 in April 2026. | — |
| Links |
