LLMS • CURATED • UPDATED NOV 1, 2025

Grok 4.1 Fast

xAI's high-volume, 2M-context workhorse model
Price
Paid
API
Yes
Weights
No

Grok 4.1 Fast is xAI's cost-efficient frontier model released in November 2025. It offers a 2-million-token context window and aggressive per-token pricing, making it a strong choice for classification, extraction, and long-document tasks at scale.

Grok 4.1 Fast delivers one of the largest context windows in the family at the lowest price point, making it the default pick for bulk work.

Pricing Paid
Platforms web, api
API Yes
Open Source No
Modalities LLMs
Best For Best for Volume and Cost Efficiency
Date Added 2025-11-01
Paid

Requires a paid subscription.

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Q

Is Grok 4.1 Fast free?

A

No, Grok 4.1 Fast requires a paid subscription.

Q

Does Grok 4.1 Fast have an API?

A

Yes, Grok 4.1 Fast offers an API for programmatic integration.

Q

What is Grok 4.1 Fast best for?

A

Grok 4.1 Fast is best for Volume and Cost Efficiency. Grok 4. Grok 4.1 Fast delivers one of the largest context windows in the family at the lowest price point, making it the default pick for bulk work.

Q

What platforms does Grok 4.1 Fast support?

A

Grok 4.1 Fast supports web, api.

Q

Is Grok 4.1 Fast open source?

A

No, Grok 4.1 Fast is not open source.

Q

How do I use Grok 4.1 Fast?

A

Grok 4.1 Fast is a large language model for text generation, analysis, and conversation. Access through the web interface. Enter prompts or questions to get responses.

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