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Grok 4 Fast token cost

xAI · context 256,000 tokens · tokenizer Approx

Open in cost calculator · Count tokens · Full calculator · Official pricing

When to use Grok 4 Fast

Faster, cheaper Grok 4 tier for volume chat on xAI. Prefer when latency and cost beat peak Grok 4 quality for your workload.

Pricing

Input
$0.200/1M
Output
$0.500/1M
Verified

Official pricing source · Open main calculator · Cheaper long context models

Estimate with TokenCalculator

Preselect Grok 4 Fast in the calculator to count tokens and project request or monthly cost. Exact vs Approx follows this model's tokenizer family. See the Exact vs Approx guide for honesty rules.

Estimate cost for Grok 4 Fast · Count tokens · Pricing guide

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Sources and references

Official documentation used for definitions, counting methods, or rate cards. Always confirm critical budgets on the provider page.