Use your computer
Inspect the screen, click, type, open apps, navigate windows, and work with what is actually in front of you.
Learn more
Your personal AI assistant, available in your browser, desktop app, and mobile app. Ask once, keep talking, and Stella figures out which agent, app, file, browser, model, or tool should handle the work.
Background agents can handle independent work and report progress inline without making you manage separate threads.
Free. No credit card, no trial.
What Stella is
Stella works with your files, apps, and browser to help you get things done.
You can use Stella for research, writing, spreadsheets, PDFs, Word documents, browser tasks, computer control, image generation, video and 3D workflows, media prompts, scheduling, reminders, dictation, realtime voice, and connected apps.
Keep your work in one conversation, whether you use Stella in your browser, on your desktop, or on your phone.
One chat
Most agent products make you choose a mode, start a new thread, pick a specialist, then remember where everything went. Stella keeps the top-level experience continuous.
Behind the scenes, Stella can split work into smaller jobs, run specialized agents, keep track of active threads, and bring the result back into the conversation. Orchestrator mode is the default, so you stay in one conversation instead of becoming the project manager for your assistant.
Capabilities
Inspect the screen, click, type, open apps, navigate windows, and work with what is actually in front of you.
Browse, search, read pages, fill forms, and use browser context when it helps.
Read, write, organize, summarize, and transform documents, spreadsheets, PDFs, presentations, images, and generated outputs.
Help make images, video, audio, 3D assets, small apps, games, mockups, and visual artifacts. Image, video, music, and 3D generation come with every paid plan.
Use in-app dictation, OS-wide dictation, read-aloud, and realtime voice. Wake-word activation is optional. Dictation, read-aloud and wake word are on every plan; realtime voice comes with every paid plan.
Create reminders, recurring check-ins, scheduled work, and automations from plain English.
Use supported services, including the Stella mobile app, Google Workspace, and Store-backed integrations.
Use Stella's managed provider, bring your own keys, use local models, pick OpenRouter-style options where supported, or select Claude Code as the engine.
Access
Open Stella in your browser to chat, start tasks, and work with files. No installation needed.
Use Stella on macOS, Windows, or Linux, with access to your computer and desktop apps.
Chat and manage tasks from your phone. Connect the desktop app when you want Stella to work on that computer.
Capture, chat, add context, or start voice from the app or page you are already using.
Keep a smaller Stella window nearby for quick asks without taking over your screen.
Dictate into Stella or talk in realtime. The desktop app also supports dictation into other apps.
Privacy
Read our Privacy Policy for details on how Stella handles your information and the choices available to you.
Models
Stella has a managed path for convenience and a provider-control path for people who want to bring their own providers.
Stella Provider lets you start using strong models without setting up accounts everywhere. Requests pass through Stella's infrastructure so billing and limits can work. Responses may be buffered briefly for stream recovery, and providers may retain submitted data under their policies.
You can also add your own provider credentials, use local runtimes, and use Claude Code directly as the assistant engine. Provider and engine options depend on the client you use.
What's new
Stella ships preview updates almost daily. The full log, grouped by date with new features and fixes, lives on its own page so you can scroll the history without leaving Learn More.
Use Stella in your browser, desktop app, or mobile app.