xAI
Today, we’re excited to launch two powerful new additions to the xAI API: Grok 4.1 Fast, our best tool-calling model with a 2M context window.
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License
Proprietary
Released
2025-11
AIDB Score
88
Grok 4.1 Fast is built by xAI and indexed in AIDB, the searchable database of every major AI model. Compare it against alternatives, find similar models, or browse other AI tools used in General.