---
title: "One API call to make a decision in your app"
description: "Yes/no, pick-one, or a score — each comes with a confidence level. Below are sample results from five scenarios. Sign in to try them with your own content."
canonical: "https://system-one.dev/en/demo"
language: "en"
---

# One API call to make a decision in your app

Yes/no, pick-one, or a score — each comes with a confidence level. Below are sample results from five scenarios. Sign in to try them with your own content.

Yes/no, pick-one, or a score — each comes with a confidence level. Below are sample results from five scenarios. Sign in to try them with your own content.
## Scenario
- [What should the character do next?](https://system-one.dev/en/demo/npc-action): What should the character do next? When health is low it drinks a potion to stay alive; when health is high it attacks.
- [Is this email phishing?](https://system-one.dev/en/demo/phishing-email): Is this email phishing? A fake Apple notice is judged high risk; an internal company maintenance notice is judged low risk.
- [Will this post be deleted?](https://system-one.dev/en/demo/tweet-moderation): Will this post be deleted? A joke about Monday meetings stays up; abuse aimed at a group is flagged for deletion.
- [Which answer is more reliable?](https://system-one.dev/en/demo/llm-judge): Which answer is more reliable? Picks the more accurate one. Swap the order of the two answers and the verdict stays the same.
- [Is this change safe to merge?](https://system-one.dev/en/demo/code-review-risk): Is this change safe to merge? Deleting a folder without checking the path is blocked; after adding a path check, the risk drops.

[See sample results](https://system-one.dev/en/demo) · [Blog](https://system-one.dev/en/blog)