Grok 4.1 Fast
A fast Grok that answers without a thinking step.
xAI, chat. Checked 30 October 2026.
Where to use it through an API
- xAI
grok-4.1-fast-non-reasoning
The maker publishes its own benchmarks and limits on its model page.
Use Grok 4.1 Fast with every other AI at once
Put Grok 4.1 Fast in one panel and ChatGPT, Claude, Gemini or any of 300+ models in the others. One message goes to all of them, answers arrive side by side, and test mode times them and hides the names so you judge fairly. Free during the beta with your own keys.
Questions
Is there a free Grok 4.1 Fast API?
Not that we found. Grok 4.1 Fast is paid per token through xAI.
What is the Grok 4.1 Fast model id?
xAI: grok-4.1-fast-non-reasoning.
How does Grok 4.1 Fast score?
The Artificial Analysis Intelligence Index had not scored it when we checked on 30 October 2026.
Can I use Grok 4.1 Fast with ChatGPT, Claude and Gemini at the same time?
Yes. MultiScreenAI puts Grok 4.1 Fast in one panel and other models in the others, sends one message to all of them and shows the answers side by side.