Grok 4.1 Fast Non-Reasoning is xAI's high-speed variant optimized for instant responses and straightforward queries, featuring a 2M token context window. Designed for production workflows requiring rapid inference without deep reasoning overhead, it maintains strong tool-calling capabilities and multi-turn consistency while delivering faster response times. Ideal for real-time applications, customer-facing chatbots, and scenarios where speed is critical, Grok 4.1 Fast Non-Reasoning balances performance with cost-effectiveness for efficient, production-ready agent deployments.
Retired on Aug 22, 2026: requests to this model ID now return an error. These models are live and work with the same API key.
Grok 4.1 Fast Non-Reasoning is xAI's high-speed variant optimized for instant responses and straightforward queries, featuring a 2M token context window.
No. Grok 4.1 Fast Non-Reasoning was retired on NagaAI on Aug 22, 2026, and requests to it now return an error. Live models you can use instead with the same API key: Grok 4.7, Grok 4.6 and Grok 4.5.
It takes text and images as input and returns text.
