Add to Chrome
Context-aware spell check
Fix spelling errors and improve the clarity of hand-written text with local AI that runs on your device, available for many languages.
On-Device AI Browser Assistant with Voice
Write, summarize, edit text and use voice across the web with on-device AI when available, or connect your preferred AI provider.
Install App
* Requires Google Chrome to be installed. Works offline.
AI writing assistant
Rewrite text directly where you are already working with just a button.
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On-Device AI
Ceres uses AI technologies that run locally on your computer whenever possible, unless you choose to connect your own AI provider.
Collapse or expand any text
Collapse text while keeping the original meaning, or expand it with more detail and context whenever you need it.
Listen to any text in your language
Select the text you want and Ceres reads it out loud in your language, so you can listen instead of reading.
Copy text from images and videos
Select any area to copy text from images and videos, then use it anywhere.
Shape your words with your voice
Press the 🪄 Command, give instructions in your own language, and let it transform text as you want.
Speak instead of typing
Press the 🎙️ Speak button to talk instead of typing inside any web page or app.
Voice text refactoring with AI
Just say, “Sort my list from A to Z,” and your product list becomes professionally sorted, with bullets if you prefer.
Custom AI writing buttons
Save your repeated writing instructions as reusable buttons and run them in one click.
Save your best prompts and reuse them anywhere
Improve prompts for AI apps, translate text, or create your own custom actions, then run them on selected text directly inside the page.
Context-aware AI sidebar
Use any open page as context to carry out thorough research.
Ceres doesn't just answer; it thinks about your task, works with the pages, tabs, and files you choose to share, and remembers your past preferences.
Complete article writing
Generate full-length articles with citations and references using rich browser context.
Read your page and tabs
Use context from the current page and open tabs to summarize content and help with your task, or drop local files.
Deep reasoning
Ceres uses advanced reasoning steps to understand complex requests and provide highly accurate results.
Enjoy any LLM inside the AI sidebar
Powered by your favorite LLM, including GPT, Claude, Gemini, Mistral, Mercury, DeepSeek, Kimi, and more.
We do not resell AI subscriptions. Ceres lets you connect the provider you choose directly.
Choose your AI provider
Connect a supported cloud provider, Ollama, or LM Studio directly.
Direct connection
Ceres connects directly to your selected provider, with no extra service in the middle.
Supported providers
Use on-device AI for fast writing actions, or connect GPT, Claude, Gemini, Mistral, Mercury, DeepSeek, Kimi, and more when you need more power.
Browser writing and reading tools
Write, read, listen, and use page context without moving the work somewhere else.