Deprecated on May 15, 2026. 1 provider still lists it at the prices below.
Grok 3 Fast BetaDeprecated
Context
131K
Max output
131K
Serving providers
1
Cheapest input
$1.25 /1M
On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.
Pricing by serving provider
standard tier · per 1M tokens · click a provider to expand| Serving provider | Input /1M | Output /1M | Endpoints | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| xAICheapest | $1.25 | $2.50 | 1 | |||||||||||||
Standardxai/grok-3-fast-beta
| ||||||||||||||||
Price history
listed seller prices, input and output per 1M tokens Input Output
Input down 75% since first tracked
Cost calculator
estimate your monthly spend on this model$450
estimated / month
Model IDs
copy the exact identifier for your platformxai/grok-3-fast-beta
Frequently asked questions
Grok 3 Fast Beta pricing, context and availabilityIs Grok 3 Fast Beta still available?
Grok 3 Fast Beta was deprecated on 2026-05-15, but 1 serving provider still list it.
How much does Grok 3 Fast Beta cost?
Grok 3 Fast Beta costs $1.25 per 1M input tokens from xAI, and $2.50 per 1M output tokens from xAI.
What is the context window of Grok 3 Fast Beta?
Grok 3 Fast Beta accepts up to 131K tokens of context and can return up to 131K output tokens.
What can Grok 3 Fast Beta do?
Grok 3 Fast Beta supports tool use, prompt caching and web search.
Other xAI models
compare pricing across the xAI lineup Listed prices from LiteLLM, OpenRouter and Vercel · last checked Sep 22, 2026
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