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Grok 4.1 Blog

Grok 4.1 fast API
Nov 20, 2025
grok 4.1 fast
xAI

Grok 4.1 fast API

Grok 4.1 Fast is xAIโ€™s production-focused large model, optimized for agentic tool-calling, long-context workflows, and low-latency inference. Itโ€™s a multimodal, two-variant family designed to run autonomous agents that search, execute code, call services, and reason over extremely large contexts (up to 2 million tokens).

Grok 4.1 Released: How It Crushes Other Models
Nov 18, 2025
Grok 4.1

Grok 4.1 Released: How It Crushes Other Models

xAI quietly released Grok 4.1 (Nov 17โ€“18, 2025) โ€” a focused upgrade to Grok 4 that prioritizes emotional intelligence, creative expression, and reduced

Grok 4.1 API
Nov 19, 2025
Grok 4.1

Grok 4.1 API

Grok 4.1 is xAIโ€™s incremental upgrade to the Grok-4 family that xAI began rolling out in midโ€“late 2025. xAI presents Grok 4.1 as a release focused on improved conversational quality โ€” notably emotional intelligence, creative writing, and responsiveness .