Grok 4.1 Fast Reasoning (Azure AI Foundry)

Name: Grok 4.1 Fast Reasoning (Azure AI Foundry)
Brand: xai
SKU: xai/grok-4-1-fast-reasoning

xai·xai/grok-4-1-fast-reasoning·GA·Closed·grok series

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

Specs & pricing

Input / output per 1M tokens

Reference priceLLM Gateway

$0.20 / $0.50

Blended $0.28 · Cache read —

Lowest paidLLM GatewayGateway

$0.20 / $0.50

Blended $0.28

Context

2,000,000

Output limit

30,000

Knowledge cutoff

—

Released / updated

2025-11-19 / 2025-11-19

Capabilities

✓ Reasoning✓ Tool useStructured output✓ Temperature✓ Attachments

Modalities

TextImage

Available at 1 providers1 with public prices

Priced only

Provider	Tier	Input	Output	Cache read	Cache write	Context	Output limit	Status
LLM Gateway	Gateway	$0.20	$0.50	—	—	2,000,000	30,000

Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.

Reasoning control

effort = loweffort = mediumeffort = high

Your usage cost

Input tokens / month

Output tokens / month

Cache hit rate

Common scenarios

1LLM Gateway$65.00

The cheapest paid channel is the only channel.

Price historyone sample accumulated per data sync

Input listOutput listMin blended

Grok 4.1 Fast Reasoning (Azure AI Foundry)

Specs & pricing

Available at 1 providers1 with public prices

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models

Grok 4.1 Fast Reasoning (Azure AI Foundry)

Specs & pricing

Available at 1 providers1 with public prices

Reasoning control

Your usage cost

Price historyone sample accumulated per data sync

Related models