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What Threshold Value Should You Use? Recommended Settings by Use Case
AnimeTag-AI, like most AI taggers, uses a setting called Threshold (confidence cutoff) when displaying results. Here's exactly what this value means, and what to set it to for different situations.
What Is Threshold?
The model computes a Confidence Score between 0 and 1 for every individual tag. Threshold is the cutoff line that says "only show me tags at or above this score." For example, if you set Threshold to 0.35, a tag with confidence 0.34 is hidden from view while one at 0.36 is shown. In AnimeTag-AI, this filtering happens instantly on the client side with no server round-trip, so moving the slider updates the results in real time right before your eyes.
What Happens If You Lower or Raise It?
- Low (0.1–0.25) — Shows as many borderline tags as possible. You get more tags, but the odds of noisy or incorrect tags slipping in also go up. This is best for situations where you'd rather "extract everything and manually sort it out afterward."
- Medium (0.3–0.45) — A safe default for most situations. AnimeTag-AI's own default is 0.35 — a balance point that favors solid, confident tags without cutting the list down too much.
- High (0.5–0.7) — Keeps only the tags the model is very confident about. Results are clean, but you may miss tags that are actually present yet came back with lower confidence. This suits situations where you just want a quick look at an image's core characteristics.
Recommended Settings by Purpose
- Building LoRA dataset captions — We recommend starting low, around 0.3, to capture as many tags as possible, then manually filtering out what you don't need using Category View and click-to-remove. See this article for detailed captioning guidelines.
- Quick classification for content-rating filtering — Since the goal here is the Rating probability itself rather than the General tags, Threshold doesn't matter much, but keeping the tag list around 0.4–0.5 is plenty clean for this purpose.
- Keyword extraction for image archive search — Since too many search keywords become noise, we recommend keeping only confident tags, around 0.45–0.6.
There's No Single Right Answer — Try It Yourself
The "right" Threshold depends on the image and your purpose, so the most accurate approach is to move the slider around and see for yourself how the results change. Upload an image to AnimeTag-AI and try adjusting the slider.