Grok 4.1 Fast

Grok 4.1 Fast by xAI excels in the Coding category, where it ranks #34 with a composite score of 64/100. Grok 4.1 Fast is xAI's best agentic tool calling model that shines in real-world use cases like customer support and deep research. 2M context window. Reasoning can be enabled/disabled using the `reasoning` `enabled` parameter in the API. [Learn more in our docs](https://openrouter.ai/docs/use-cases/reasoning-tokens#controlling-reasoning-tokens) It is particularly strong in areas highlighted by its top benchmark performance and adoption metrics, making it suitable for both individual developers and enterprise teams looking for a reliable coding solution.

Grok 4.1 Fast is priced at $0.20 per million input tokens and $0.50 per million output tokens (USD). Contact the provider for volume discounts and enterprise pricing. Pricing is competitive within the coding category and reflects the model's quality-to-cost ratio.

In the Coding category, Grok 4.1 Fast holds rank #34 out of 6 models tracked. Its quality rank is #34 and adoption rank is #34. You can use our comparison tool at /compare to see detailed side-by-side metrics with specific alternatives. Key differentiators include its composite scoring across benchmarks, community sentiment, and real-world adoption rates.

Grok 4.1 Fast has been evaluated across 6 different signals. Its strongest areas include Capabilities (86/100), Context Window (100/100), Output Capacity (75/100). These scores are derived from industry-standard benchmarks, community ratings, and real-world performance metrics. The composite score of 64/100 reflects a weighted combination of all tracked signals.

Grok 4.1 Fast is a paid model, though some providers may offer trial credits or limited free tiers for evaluation. Check xAI's website for current free tier availability and promotional offers.