LusoChat – AI Open Models

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LusoChat is a native application for iPhone, iPad, and Mac that consolidates access to various artificial intelligence models. The app allows users to chat with both open-weight models (such as DeepSeek, Llama, Kimi, Qwen, GLM, and MiniMax) and frontier flagships from providers like OpenAI and Google. Users can switch between these models with a single tap without managing separate API keys or subscriptions.

Key features include adjustable reasoning effort levels ranging from Instant to High, built-in web search capabilities that allow models to cite live sources, and support for attaching PDFs and images. Images are compressed on-device, while PDFs are readable by all integrated models. The interface renders answers in clean Markdown, including syntax-highlighted code blocks. Users can organize their work using a Library and Projects feature to save prompts and chats. The app supports sign-in via Apple ID or anonymous guest mode, with secure syncing across devices. Privacy is emphasized, stating that conversations are not used for advertising or model training, and users can delete data at any time.