Model

Grok 4.1 Fast

Name: Grok 4.1 Fast
Brand: xai

xAI's fast agentic tool-calling model with a 2M context window; non-reasoning variant for low-latency responses

6 providers · 9 listingsreleased Nov 19, 2025closed weights

$0.2

lowest input /M · FrogBot

$0.5

lowest output /M · FrogBot

context window

max output

Compare providers (sorted by listed input price)

5 of 6 providers publish a price for Grok 4.1 Fast. The cheapest full-context option is FrogBot at $0.2/$0.5 per M. Listed prices span 1.9× for identical weights.

			Cache read /M	Cache write /M		Capabilities	Status
FrogBotvariant grok-4-1-fast-non-reasoning	$0.2	$0.5	$0.05	—	2M	no reasoningtoolsno structuredvision		Nov 25, 2025
FrogBotvariant grok-code-fast-1	$0.2	$1.50	$0.02	—	256K	reasoningtoolsno structuredno vision		Aug 28, 2025
FrogBotvariant grok-4-1-fast-reasoning	$0.2	$0.5	$0.05	—	2M	reasoningtoolsno structuredvision		Nov 25, 2025
Perplexity Agent xai/grok-4-1-fast-non-reasoning	$0.2	$0.5	$0.05	—	2M	no reasoningtoolsno structuredvision		Nov 19, 2025
Azurevariant grok-4-1-fast-non-reasoning	$0.2	$0.5	$0.05	—	128K	no reasoningtoolsno structuredvision		Jun 27, 2025
Azurevariant grok-4-1-fast-reasoning	$0.2	$0.5	$0.05	—	128K	reasoningtoolsno structuredvision		Jun 27, 2025
Abacus grok-4-1-fast-non-reasoning	$0.2	$0.5	—	—	2M	no reasoningtoolsno structuredvision		Nov 17, 2025
Ofox x-ai/grok-4.1-fast	$0.2	$0.5	$0.05	—	2M	no reasoningtoolsstructuredvision		Nov 19, 2025
Vertex xai/grok-4.1-fast-non-reasoning	$0.2	$0.5	$0.05	—	128K	no reasoningtoolsstructuredvision	deprecated	Nov 19, 2025
ZenMux x-ai/grok-4.1-fast	$0.2	$0.5	$0.05	—	2M	reasoningtoolsno structuredvision	deprecated	Nov 20, 2025
Qiniu x-ai/grok-4.1-fast	—	—	—	—	2M	reasoningtoolsno structuredno vision		Nov 20, 2025

Best price history

Daily lowest published price across live providers. A lower line is better for the buyer.

Best input /M: $0.2unchanged
Best output /M: $0.5unchanged
Provider coverage: 9; 9 at the start · 24 snapshots

Published best prices are unchanged.

24 daily snapshots collected from Aug 21, 2026 through Sep 14, 2026. A price chart will appear after the first real move.

Price badge

![Grok 4.1 Fast price](https://www.vaanalytics.in/badge/xai/grok-4.1-fast.svg)

https://www.vaanalytics.in/badge/xai/grok-4.1-fast.svg

Live SVG, regenerated on every hourly sync — paste it into a README to always show the current cheapest listed price. Updates when prices change; no build step needed on your side.

Recent changes

Changelog →

new modelvia google-vertex · Sep 11, 2026
capabilityvia azure · Sep 7, 2026
- status: beta → —
capabilityvia azure · Sep 7, 2026
- status: beta → —

Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.