CFG Scale
CFG scale, short for classifier-free guidance scale, is a setting that controls how strongly an AI image model adheres to your prompt — low values allow more creative freedom, high values force a more literal match.
June 16, 2026
CFG scale (classifier-free guidance scale) is a setting that controls how strictly an AI image model follows your prompt versus generating freely — higher values produce a more literal match.
How it works
During generation, a diffusion model can predict an image both with your prompt and without it. Classifier-free guidance combines these two predictions and amplifies the difference between them, steering the result toward your prompt. The CFG scale is the strength of that push. At a low value, the model leans toward its unconditioned, more imaginative output and treats your prompt loosely. At a high value, it exaggerates the prompt's influence, forcing details to appear even when they fight the model's natural composition.
There is a sweet spot. Pushed too high, images often become oversaturated, over-contrasted, or rigid; pushed too low, they wander away from what you asked for. The ideal range depends on the model and prompt, but a middle setting usually balances fidelity and quality.
Why it matters
CFG scale is one of the main dials for trading off creativity against control. When a prompt is being ignored, raising it can force compliance; when results look artificial or burned-out, lowering it restores realism. Understanding it explains why the same prompt and seed can swing from loose interpretation to strict literalism just by changing one number.
In eaxy
eaxy sets guidance for you. Rather than exposing a CFG slider, it tunes the parameter automatically so prompts come out faithful and natural across its style packs — you describe what you want and get a clean result without manual calibration.
Related terms
Frequently asked questions
What does CFG scale do?+
It sets how strictly the model follows your prompt. Lower values give the model more creative latitude; higher values pull the image to match your words more literally, sometimes at the cost of naturalness.
What is a good CFG scale value?+
Mid-range values (often around 5 to 9, depending on the model) balance prompt accuracy with image quality. Very high values can look oversaturated or harsh; very low values can drift off-prompt.
What does CFG stand for?+
CFG stands for classifier-free guidance, a technique that steers a diffusion model toward your prompt without needing a separate classifier network.
Do I set CFG scale in eaxy?+
No. eaxy tunes guidance and other parameters automatically so prompts land reliably, letting you focus on the idea instead of dialing technical sliders.
Make it with eaxy
Describe anything and generate stunning images in seconds — then bring them to motion with Kling 3.