"Sonic" = Grok Code Fast. Get this frontier AI model 100% free in Kilo Code
The rumours are true. The stealth model "Sonic" which we gave you exclusive access to last week is from xAI.
Kilo Code is a 100% free, open-source AI agent extension for VS Code with over 250,000 installs.
We've partnered with xAI to bring you exclusive access to this powerful frontier model for free. And by free we mean really free: No rate limits and fast code generation.
TL;DR: Grok Code Fast is a frontier AI model that launched in GA today, and you get free access to use it inside Kilo Code.
The Model: Grok Code Fast
Blazing-fast reasoning model optimized for agentic coding
Free for a limited time (at least one week) through our launch partnership with xAI. Users opt-in to share usage data to help improve the model.
Early access for Kilo Code users
262k context window (combined input/output)
Unlimited usage—no throttling, no caps
"Our community raved about the speed of Grok Code Fast and were delighted by the model's tool calling proficiency in Kilo Code."
Brendan O’Leary, Developer Relations Engineer, Kilo Code
Standard Pricing (read: what you would pay outside Kilo Code, currently 100% free for Kilo Code users):
Input tokens: $0.20/1M tokens
Cached tokens: $0.02/1M tokens
Output tokens: $1.50/1M tokens
How to Use Grok Code Fast in Kilo Code... 100% Free
Kilo Code is a launch partner with xAI and we're able to bring you this blazing fast coding model completely free for a limited time.
Install Kilo Code
Download our VS Code extension and join 250,000+ developers already using Kilo.
Select Grok Code Fast
Navigate to Settings, set API Provider to Kilo Code and Model to 'x-ai/grok-code-fast-1'
Start Coding
That's it. Get a frontier AI model with zero cost (for a limited time).
Wow....Trying. Some unknown rate limits behind.
I think you need credit in your account or at least payment method otherwise even though it is "free" you will not get access