XaiVisionTool use

Grok 4 1 Fast pricing

Grok 4 1 Fast appears on 2 price rows here. Lowest input is $0.200 per million tokens from Xai. Lowest output is $0.500 per million tokens from Xai. Use the table and chart, then the calculator for your own volume.

2.0M context·2 providers·verified Apr 7, 2026
Best input$0.200per 1M tokens · Xai
Best output$0.500per 1M tokens · Xai

Pricing across providers

Every row is a seller of Grok 4 1 Fast with token pricing we track. The cheapest input in this snapshot is from Xai. The bar chart shows the same input and output dollars per million for a quick scan.

X
Xainative
Input / 1M
$0.200
Output / 1M
$0.500
Cached in: $0.050
O
Openrouter
Input / 1M
$0.200
Output / 1M
$0.500

Input vs output · per provider

Cost calculator

Pick any of the providers above and type how many tokens you expect per day, week, or year. We turn that into rough dollar totals for Grok 4 1 Fast.

Provider

In: $0.200/M·Out: $0.500/M·Cache: $0.050/M

0.020000¢ / req

0.025000¢ / req

Daily
$4.50
Monthly
$135
Annual
$1.6K

Model specifications

Quick spec sheet for Grok 4 1 Fast before you dive back into pricing. Reported under Xai.

Context window
2,000,000 tokens
Max output
2,000,000 tokens
Vision (images)
Yes
Tool / function calling
Yes
Streaming
No
Released
N/A
Primary provider
Xai
Model family
N/A

Compare Grok 4 1 Fast

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Frequently asked questions

Quick frequently asked items for Grok 4 1 Fast pricing and limits.

Grok 4 1 Fast costs $0.20 per million input tokens and $0.50 per million output tokens via the native API. Prompt caching reduces input costs to $0.05/M tokens.

Also from Xai

Other models by Xai with live pricing in our catalog.