Grok-4.1-Fast-Reasoning

Name: Grok-4.1-Fast-Reasoning
Brand: Poe

by Poe · family grok · listed Nov 2025RTV

Fast Grok model for responsive chat, reasoning, and tool-assisted work

Current rates USD per 1M tokens

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Model id: xai/grok-4.1-fast-reasoning
Context window: 2M tokens
Max output: 30K tokens
Input modalities: text, image
Output modalities: text
Reasoning: yes
Tool calls: yes
Open weights: no
Knowledge cutoff: —
Released: 2025-11-19
Last updated: 2025-11-19
Provider docs: creator.poe.com/docs/external-applications/openai-compatible-api