OpenRouter

xAI: Grok 4.1 Fast

Name: xAI: Grok 4.1 Fast
Brand: OpenRouter

Canonical ID: openrouter/x-ai/grok-4.1-fast

More OpenRouter models More grok-4.1-fast family models

xAI: Grok 4.1 Fast is listed under OpenRouter in LLM Directory with pricing, context limits, modalities, and capability metadata for quick comparison.

Reasoning: No Tool use: Yes

Overview

text image

Provider: OpenRouter
Family: grok-4.1-fast
Release date: 2025-11-19
Last updated: 2025-11-19
Input modalities: text, image
Output modalities: text

Pricing and Limits

Token pricing

Input: $0.2/1M
Output: $0.5/1M
Cached input: N/A

Context and output

Context window: 2,000,000
Max output tokens: 30,000
Qualified ID: openrouter/x-ai/grok-4.1-fast

Model Summary

xAI: Grok 4.1 Fast is a model listing in the OpenRouter provider catalog. It is categorized under the grok-4.1-fast family.

The model supports text, image modalities across input/output paths. Reported context capacity is 2,000,000. Pricing is listed at $0.2/1M input and $0.5/1M output.

Same Family: grok-4.1-fast

Comparable models in the same family across providers.

Browse family

Model	Provider	Context	Input	Output	Flags
Grok 4.1 Fast zenmux/x-ai/grok-4.1-fast	Zenmux	2,000,000	$0.2/1M	$0.5/1M	Reasoning Tools
x-AI/Grok-4.1-Fast qiniu-ai/x-ai/grok-4.1-fast	Qiniu	2,000,000	N/A	N/A	Reasoning Tools
x-AI/Grok-4.1-Fast qiniu_ai/x-ai/grok-4.1-fast	Qiniu	2,000,000	N/A	N/A	Reasoning Tools
xAI: Grok 4.1 Fast kilo/x-ai/grok-4.1-fast	Kilo Gateway	2,000,000	$0.2/1M	$0.5/1M	Reasoning Tools

xAI: Grok 4.1 Fast

Overview

Pricing and Limits

Token pricing

Context and output

Model Summary

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Same Family: grok-4.1-fast