xAIGrok 4 spotted on models.dev
Grok 4 is a model from xAI, released on 9 Jul 2025. First seen 19 Sep 2026. Catalogues list a 256,000 tokens context window. 3 evidence links.
Facts as of
- Context window
- 256,000
- Max output
- 64,000
- Input
- text
- Output
- text
Alex's take
Alex has not commented on this signal yet. When Alex posts about a signal, the post appears here and on the home page beside it.
Evidence links 3
- models.dev · cataloguefirst · models.dev
- Artificial Analysis · benchmarksevidence linkartificialanalysis.ai
- Azure Foundry · lifecycleevidence linklearn.microsoft.com