SillyTavern

SillyTavern is a locally installed, open-source user interface for interacting with various text and image generation AI models. It provides extensive control over LLM prompts, supports character cards, group chats, and offers rich UI customization. It's designed for 'savvy AI hobbyists' and power users.

SillyTavern is an LLM frontend that integrates with various AI models (multi-model-integration) like OpenAI, Claude, and others. It is a locally installed user interface, not a web-based platform, and focuses on providing extensive control over LLM prompts for 'power users' rather than a simplified guided interface. While it supports user personas and customizable UI, it doesn't explicitly offer a 'guided tool interface' with simple forms for non-prompt engineers, nor does it have a catalog of 150+ specialized tools. It is open-source and free, but the underlying GitHub platform offers user authentication and subscriptions. It also supports multi-language content generation.