All Your AI Assistants
One App
Zero Hassle
Stop juggling apps and subscriptions. Use ChatGPT, Claude, Gemini, and local models from one unified interface. Your chats stay in your browser, your API keys never leave your device, and you switch models instantly.

Everything You Need in One Interface
Go beyond basic chat. Advanced features like shortcuts, session management, and instant model comparison. Built for demanding AI users.
Access All AI Models Instantly
Use OpenAI, Anthropic, Google, and local models from one interface. Switch between them with a single keystroke to compare responses and find the best solution.
Key Features
- OpenAI GPTs & o-series
- Anthropic Claude
- Google Gemini Pro & Flash
- Local Ollama models
- Custom API endpoints
- Browser-based Transformers.js
- Instant switching with Cmd/Ctrl+M
OpenAI
GPTs and o-series
Claude
Opus, Sonnet, Haiku
Gemini
Pro, Flash
Ollama
Local Models
Access All AI Models Instantly
Use OpenAI, Anthropic, Google, and local models from one interface. Switch between them with a single keystroke to compare responses and find the best solution.
Key Features
- OpenAI GPTs & o-series
- Anthropic Claude
- Google Gemini Pro & Flash
- Local Ollama models
- Custom API endpoints
- Browser-based Transformers.js
- Instant switching with Cmd/Ctrl+M
OpenAI
GPTs and o-series
Claude
Opus, Sonnet, Haiku
Gemini
Pro, Flash
Ollama
Local Models
Your AI, Your Rules. Connect Them All.
Connect your favorite AI models and switch between them seamlessly.Note: Each AI provider handles data per their own privacy policies.
Master Any Task, Instantly.
From content creation to code development, Assistant Shell adapts to your workflow
Content Creation
Generate and refine content faster by comparing outputs from multiple AI models. Find the perfect tone and style for your audience.
Code Development
Accelerate debugging with multi-model insights. Get diverse solutions and explanations to solve complex coding challenges.
Research & Analysis
Cross-reference multiple AI models for comprehensive research. Compare different perspectives to make better-informed decisions.
Customer Support
Speed up support with instant access to multiple AI assistants. Craft better responses by leveraging each model's strengths.
Get Started in 3 Simple Steps
No downloads, no installations. Just open your browser and start chatting
Open the App
Visit web.assistant.sh - it works instantly in your browser as a Progressive Web App. No downloads required.
Add Your API Keys
Connect your preferred AI services securely. API keys are stored locally in your browser for complete privacy.
Start Using Multiple Models
Switch between AI models instantly with keyboard shortcuts. Compare responses to get the best results.
Ready to take command of your AI workflow?
Join other users who've streamlined their AI assistants with Assistant Shell.
Get Started FreeFree Forever - You Own Your AI
No subscriptions, no markup. Use your own API keys and pay providers directly
Stop Overpaying for AI
Why pay $40+/month in fixed subscriptions when you can use all the same models and only pay for what you actually use?
With Assistant Shell, you only pay for the API usage you actually need. Most users spend less than $5/month.
for Assistant Shell
Frequently Asked Questions
Everything you need to know about Assistant Shell
What is Assistant Shell?
Assistant Shell is the ultimate AI power tool - a unified interface for instantly switching between ChatGPT, Claude, Gemini, local models, and more. Built for users who need to compare models, test different approaches, and find the perfect AI for each task. With keyboard shortcuts for lightning-fast model switching, session management, and zero setup friction - just add your API keys and start experimenting. It's the tool serious AI users have been waiting for.
How do I connect my AI keys?
After accessing Assistant Shell at web.assistant.sh, go to the settings panel where you can add your API keys for each AI service you want to use. The keys are stored securely in your browser's local storage and are never sent to our servers. You can add keys for OpenAI, Anthropic, Google, or configure custom endpoints.
Is my data really private?
Yes, with an important distinction: Assistant Shell stores nothing - all your chat history, settings, and API keys stay in your browser's IndexedDB. We have no servers and collect no data. However, when you chat with AI models, your messages go directly to the AI providers (OpenAI, Anthropic, etc.) who process them according to their own privacy policies. Think of us as a secure browser for AI - we protect your local data, but the AI services you connect to have their own data practices.
Do I need to pay for Assistant Shell?
No! Assistant Shell itself is free to use. You only pay for the API usage directly to the AI providers (OpenAI, Anthropic, etc.) based on their pricing. There are no subscription fees or markup on API costs. You use your own API keys and pay the providers directly.
Can I use it offline?
Assistant Shell works as a Progressive Web App (PWA), so the interface can work offline. However, you'll need an internet connection to communicate with cloud-based AI models. Local models through Ollama can work offline if they're running on your machine. Your chat history and settings are always available offline.
Which AI models are supported?
We support OpenAI (GPTs and o-series), Anthropic (Claude), Google (Gemini), local models via Ollama, browser-based models via Transformers.js, and custom API endpoints. You can switch between models instantly using Cmd/Ctrl+M. We're continuously adding support for new models and providers.
Why is this free when AI costs money?
Assistant Shell is my contribution to the AI community - built by a power user for power users. I created it to solve my own need for instant model switching and "vibe checking" different LLMs. With local models like Ollama, you can use it completely free. With cloud APIs, you only pay for what you use - no $40+/month subscriptions. As AI gets cheaper and more capable, the cost of software development approaches zero. Assistant Shell embodies this future: A public good that puts control back in your hands.