Tianyi Zhang(@mycharmspace ):Grok 4.1 Fast on xAI API is no doubt the best Deep Research Agent you can get from any API, it browses the internet and X with lightning speed. We cracked special recipe on high-elo real-world challenges that are ever changing with @ShuyangGao62860 , @LiTianleli , and @jqruan2025 . Obviously it won't be the best agent model without the great care and post-training from @RoverHM 's team. Plz let the GPU burn!!

2025.11.20 03:44

Grok 4.1 Fast on xAI API is no doubt the best Deep Research Agent you can get from any API, it browses the internet and X with lightning speed. We cracked special recipe on high-elo real-world challenges that are ever changing with @ShuyangGao62860 , @LiTianleli , and @jqruan2025 . Obviously it won't be the best agent model without the great care and post-training from @RoverHM 's team. Plz let the GPU burn!!

xAI@xai

2025.11.19 23:17

Introducing Grok 4.1 Fast and the xAI Agent Tools API. Grok 4.1 Fast is our best tool-calling model to date. With a 2M context window, it shines in real-world use cases like customer support and deep research.

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