Tianyi Zhang(@mycharmspace ):Proud to be part of the team contributing to the post-training of this model, especially on reducing its factual hallucinations for the fast-mode. The team has poured many innovations on the recipe. We will keep improving.

Tianyi Zhang

@mycharmspace

prev search post-training@xAI, Opinions are my own

Joined September 2011

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Tianyi Zhang@mycharmspace

2025.11.18 02:53

Proud to be part of the team contributing to the post-training of this model, especially on reducing its factual hallucinations for the fast-mode. The team has poured many innovations on the recipe. We will keep improving.

xAI@xai

2025.11.17 21:20

Introducing Grok 4.1, a frontier model that sets a new standard for conversational intelligence, emotional understanding, and real-world helpfulness. Grok 4.1 is available for free on and our mobile apps.