On-Device AI Assistant with Voice - Ceres

AI writing and chat assistant with speech-to-text and speech synthesis. Supports Gemini Nano, OpenAI, DeepSeek, and more.

Ceres is a complete and open writing assistant that works inside any text field with on-device AI or any LLM you want to plug. 🟣 Writing Assistant 🟣 ➢ Grammar / Spelling fixes on any selected text ➢ AI rewrites - expand, condense, simplify, format or match any tone. ➢ Edits happen directly in the active field (Gmail, Docs, forms, any site) - no popups. ➢ Custom buttons with your own prompts - create one-click buttons for any task. Define your own prompt (like "make this sound like a pirate" or "convert to bullet points"), name it, and it appears in your toolbar. 🔵 Accessibility 🔵 ➢ Voice typing on any website with speech recognition. ➢ Offline translate back and forth to english with automatic language detection. ➢ Text-to-speech - listen to selected text. ➢ Both translate and speech listen anything to your mother language (killer feature 💀). ➢ Optical character recognition on every image or video with instant copy! ➢ Summary page with TTS speaking! 🟢 More with an AI provider 🟢 ➢Context-aware chat - chat with your own LLM, aware of open tabs and PDFs. ➢Instant apply chat suggestion to any page (killer feature 💀). ➢ Chat session can generate images if you configure the correct image generation model LLM (optional) ➢ Chat session can dictate with Whisper or any other audio LLM capable via API (optional) ...nearly AI Browser experience... 🟠 Use cases 🟠 ➢ Reply to a work email by speaking in Greek ➢ then translate to English (killer feature 💀). ➢ Clean up a messy Notion list ➢ attach to chat ➢ then make it a complete paragraph. ➢ Draft an mail by speaking raw ideas ➢ press shorter button ➢ your messy text because usable! (killer feature 💀). ➢ Fix spelling on selling articles ➢ select ➢ hit "grammar / spelling" ➢ correction appears in place. ➢ Summarize a long article ➢ ask Ceres ➢ listen while you keep working. ➢ Re-write offline when connection drop- on-device model handles writing and voice every where. ⚪ Technology ⚪ Ceres is using on-device/local AI (Gemini Nano managed by Google Chrome) for writing tasks, Tesseract for Optical Character Recognition, and browser capability for speech synthesis and speech recognition. Additionally, you can use your favorite AI provider to power the enriched Chat Copilot. ⚫ Specs ⚫ Your computer must support Chrome built-in AI, suitable GPU or a CPU setup with at least 16 GB of RAM and 4 CPU cores. The first run may also need time to download the model. If browser cannot run on-device AI on your computer, you can always connect your writing buttons to an AI provider in settings. After that, Ceres will use the selected provider for these AI features. Enjoy, a Browser with Super Powers powered by your computer or choice LLM!