What you can do with it
Proton's AI assistant focuses on private conversations, with optional web search and encrypted saved chat history. You can begin as a guest or sign in for more features. It supports everyday explanations, summaries, planning, and writing assistance, making it a useful choice for people who want a straightforward privacy-focused assistant.
What’s included for free
Guest access is free with limited usage. A free Proton Account adds more prompts and encrypted history, with limited Max model usage, image generation, and one project.
Free tiers can restrict usage or features. Paid upgrades are separate.
Available models
Model availability can differ by plan and change over time.
Official sources
The official pages used to check this listing.
Free accessQwen
Alibaba's official browser assistant gives you direct access to the Qwen model family for questions, reasoning, drafting, and learning. Its broader Qwen Studio experience also supports creative and collaborative work. This is a useful first stop for trying Qwen without setting up an API or running models locally.
Free accessDeepSeek
DeepSeek's official chat service makes its own model family accessible through a familiar question-and-answer interface. It is suited to explanations, brainstorming, mathematical reasoning, and working with text. The official consumer experience includes web search, a deeper-thinking option, and file text extraction, with history available across devices.
Free planChatGPT
OpenAI's general-purpose assistant combines conversation with web search, document and image understanding, and learning support. You can use it to explain unfamiliar concepts, revise text, plan projects, or ask questions about uploaded material. The free plan provides a practical introduction, with limits on heavier tools and advanced model usage.