Pyre

Pyre is an AI roleplay chat client that runs on Android, Windows, Linux, and the web. It is designed around one core idea: your conversations, characters, and settings stay on your device. There is no Pyre account to create, no backend server handling your messages, and no cloud storage involved. You supply an API key from whichever AI provider you prefer (OpenRouter, Venice, NanoGPT, a locally-running model, or anything that uses the same interface as OpenAI), and Pyre handles the rest.

The chat side of the app supports live streaming responses, branching conversations (you can reroll or rewrite any message and the entire downstream thread comes back with it), group chats with multiple characters, and long-term memory that automatically summarizes past events so the model stays aware of what happened in earlier parts of a story. There are also tools for out-of-character notes, scene direction, and slash commands.

For building characters, Pyre includes an AI-powered creator: you describe a vibe or concept, and the tool produces a complete character card covering appearance, personality, backstory, and sample dialogue. It keeps working until the result is complete rather than stopping at a partially filled card. The app also supports lorebooks, which are sets of world-building notes that get included in the conversation automatically when relevant keywords appear.

Pyre integrates directly with BotBooru, a community hub where people share character cards. You can browse the hub from inside the app and import a card with one tap. For people who use multiple devices, the desktop version can act as a sync hub: pair your phone using a QR code and your characters and chat history follow you across devices.

The project is built with Dart (the Flutter framework) and is licensed under AGPL-3.0. It was created by a small independent group called Ember Team who describe themselves as roleplayers who wanted a mobile-first client that does not restrict what you write. The app is currently in public beta.