QuackAI

The rules you set are the unbreakable laws for AI characters. Here, bid farewell to plot deviations.
"Fantasy is the answer," and the answer must be precise. This app is born for true creators—you are no longer a "passive receiver" of AI, but the "sole director" of the story's direction. When AI responses go off track or fail to meet your expectations, you no longer need to compromise or restart. Features like Response Guidance grant you the power to intervene in real time: you can correct, guide, or even reshape every word from the AI, ensuring its replies fully align with your creative intent. Every instruction you give becomes the final script the AI must follow.
Worldbook
This is more than just a background setting—it constructs the origins of a fantasy world, including cities, architecture, items, special powers, and terminology explanations, offering multiple trigger methods to enhance story depth and immersion.
Response Guidance
Ensure AI responses always align with your creative vision. You can set specific directions and requirements to guarantee the AI’s replies perfectly match your intentions.
Summon Characters
Freely summon any open characters into the storyline, vastly enriching narrative layers and emotional depth.
Powerful Model Core
For your creations, choose the strongest minds. We’ve seamlessly integrated top-tier large language models (LLMs), fully supporting Gemini, Claude, DeepSeek, Cohere, Grok, and more. Easily add and manage multiple API keys, allowing you to switch between AI engines freely and find the perfect narrative partner.
One-Click Import
Effortlessly import your existing character assets. We fully support character cards, worldbooks, and regex imports, and allow you to add characters directly from any publicly shared library via URL links, ensuring seamless continuity in your creations.