Grok 4.20 (Reasoning)
Grok 4.20 (Reasoning) by xAI — specifications, pricing and published benchmark scores, with community links.
| Organization | xAI |
|---|---|
| Released | 2026-03 |
| License | Proprietary |
| Open weights | No |
| Context window | 1,000,000 tokens |
| Modality | text, image, pdf |
| Input price | $1.25 / 1M |
| Output price | $2.5 / 1M |
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