Deprecated on May 15, 2026. 1 provider still lists it at the prices below.
Grok 4.1 Fast Reasoning LatestDeprecatedPointer
Grok 4.1 Fast Reasoning Latest is a rolling pointer, not a fixed model. The provider moves this name to new models over time, so the price on this page is what it costs today.
Context
2M
Max output
2M
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-4-1-fast-reasoning-latest
| ||||||||||||||||
Price history
listed seller prices, input and output per 1M tokens Input Output
Cost calculator
estimate your monthly spend on this model$450
estimated / month
Model IDs
copy the exact identifier for your platformxai/grok-4-1-fast-reasoning-latest
Frequently asked questions
Grok 4.1 Fast Reasoning Latest pricing, context and availabilityIs Grok 4.1 Fast Reasoning Latest still available?
Grok 4.1 Fast Reasoning Latest was deprecated on 2026-05-15, but 1 serving provider still list it.
How much does Grok 4.1 Fast Reasoning Latest cost?
Grok 4.1 Fast Reasoning Latest 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 4.1 Fast Reasoning Latest?
Grok 4.1 Fast Reasoning Latest accepts up to 2M tokens of context and can return up to 2M output tokens.
What can Grok 4.1 Fast Reasoning Latest do?
Grok 4.1 Fast Reasoning Latest supports image input (vision), tool use, reasoning, audio input, prompt caching, structured output 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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