Ceres: On-Device Browser AI Assistant with Voice

Improve writing, edit text with voice, and use page and tab context. Works with OpenAI-compatible providers or on-device AI.

Ceres gives superpowers to your browser with AI and voice interaction with on-device AI, rewrites or correct any text directly inside any text field, running locally on your computer. It also listens to your voice and writes for you or speak you back, a full browser AI assistant without the need for a subscription. 💬 Browser AI sidebar AI assistant that lives in your sidebar and sees what you're working on, open tabs, PDFs, images, summarize or compare documentation, compose and write better articles. - Chat with context from your current page - Apply writing suggestion without copy and paste - Search the internet and browser history with navigation mode. - Access into local computer files 🧭 Navigation / agent mode When enabled, Ceres can find and search the internet, browse tabs, explore local files, and gather the context needed to answer your request or finish your task! 🧠 Reasoning mode When enabled, Ceres can think to itself to improve AI suggestions when complex tasks occur. 🧩 Memory Ceres can remember your favorite writing or your evolving project while it grows. ✨ Rewrite buttons (Pro) Polish your text with smart floating buttons, polish writing, and expand or collapse any text inside the text field you're already using. No copy-paste, no tab switching, powered by your browser's On-Device AI. - Rewrite and polish human-written text - Improve prompts for ChatGPT and AI agents - Make your own quick buttons for things you do often - Translate text written in your language into English - Keeps original formatting for richer editors. 🪄 Edit text with your voice (Pro) - Transforms any selected text with just spoken instruction! - Reply to clients with your voice - Speak instead of typing anywhere 🔊 Speech and read aloud - Read aloud any text in your language - Listen to the page summarizations 🍃 Instant spell check (Pro) Instantly spell check for a computer that don't support on-device AI. ⚡️Code with Gemini Nano Press the folder icon to read local project files, and apply AI suggestions directly to the files—no copy and paste needed. Write your project with local AI or your preferred provider right in the browser. 🔮 Local AI & BYOK Ceres uses the browser's built-in on-device AI for your writing tasks and voice command, eliminating the need for external middleware. Ensure your computer meets the appropriate requirements; otherwise, an alternative LLM can be used via API.