Grok 4.1 at a glance
Grok 4.1 became the default in Auto mode on grok.com, X, and the mobile apps, with xAI focusing on style, personality, and emotional intelligence and reporting a top LMArena text ranking at launch.
What changed with Grok 4.1
On November 17, 2025, xAI made Grok 4.1 available to all users on grok.com, X, and the iOS and Android apps, rolling it out in Auto mode and as an explicit choice in the model picker. Before the announcement, xAI ran a silent rollout from November 1 to 14 and says users preferred Grok 4.1 over the previous production model 64.78% of the time in blind comparisons.
xAI says it applied the reinforcement learning setup behind Grok 4 to style, personality, helpfulness, and alignment, using frontier reasoning models as reward models. At launch, xAI reported that Grok 4.1 Thinking held the top overall spot on LMArena's Text Arena at 1483 Elo and published EQ-Bench3 and Creative Writing v3 results; these are vendor-reported, launch-day figures.
Where to compare Grok 4.1
Independent leaderboards and official resources for comparing this model yourself. Rankings change often; each site shows its own current data.
General leaderboards
Why Grok 4.1 matters for businesses
This release targeted the consumer apps; the developer-focused Grok 4.1 Fast and Agent Tools API followed two days later. For businesses, the practical change was a warmer, more conversational default in Grok, which matters most for customer-facing writing and chat drafts rather than for API workloads.
Put it to work: AI Chatbots
Sources for this story
- Grok 4.1 (opens in a new tab)Official
xAI · x.ai
Last verified: . IA Compa summarizes public announcements for business readers. We are not affiliated with the companies mentioned. Always confirm details, pricing, and availability with the official source.
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