Multi-model AI chat: Claude, Gemini, and GPT in one place
Claude for writing, GPT for reasoning, Gemini for long context — stop choosing one provider. Silas puts every top model in a single chat app and lets you switch mid-conversation.
Compare AI models side by side
Each model has a lane it wins in. Ask the same question twice with a different model selected and see the difference in the same thread.
| Model | Best for | Try it on |
|---|---|---|
| Claude | Writing, editing, and long careful reasoning over your documents | Draft an essay from your lecture notes, then ask it to critique its own draft |
| GPT | Step-by-step problem solving, code, and structured output | Work through a problem set and ask for the reasoning behind each step |
| Gemini | Very long context and fast answers over large files | Upload a 200-page reading and ask for the three arguments that matter |
Why use a multi-model chat app
Every top model, one app
Claude, Gemini, and GPT side by side. No more juggling three tabs, three logins, and three conversation histories.
Switch mid-conversation
Change models without losing the thread. Draft with one model, fact-check with another, and compare answers to the same question in seconds.
One subscription
Separate ChatGPT, Claude, and Gemini plans add up to ~$60/month. Silas starts at $10/month with all model families included.
Your documents, every model
Connect your files once and ask any model about them. Answers come back with citations to the exact page, whichever model you use.
More than a model switcher
Most model aggregators stop at giving you a dropdown of models. Silas goes further: your documents are part of the workspace. Upload PDFs, Word documents, and spreadsheets — or sync Google Drive and Microsoft 365 — and every model can answer questions grounded in your own files.
That grounding comes with receipts. Answers cite the exact file, page, and section they came from, so switching models never means trading away trust. See how it works when you chat with a PDF or read about answers with verifiable citations.
Frequently asked questions
What is a multi-model AI chat?
A multi-model AI chat is one chat app that can send your message to different AI models — Claude, Gemini, or GPT — instead of locking you into a single provider. In Silas you pick the model per message and the conversation history is shared, so you can compare how each model answers the same question.
Which AI models are included?
Silas includes Claude, Gemini, and GPT under one subscription. You pick the model per message, so you can use the best one for each task instead of committing to a single provider.
Can I switch models in the middle of a conversation?
Yes. The whole conversation carries over when you switch — ask GPT to draft something, have Claude critique it, then let Gemini summarize, all in the same thread.
Is this cheaper than separate subscriptions?
Subscribing to ChatGPT, Claude, and Gemini separately costs roughly $60 per month. Silas plans start at $10 per month and include all four model families.
How is Silas different from other multi-model chat apps?
Beyond model switching, Silas connects to your documents. Upload files or sync Google Drive and Microsoft 365, and every model can answer questions about them — with citations to the exact page.
Do all models see my documents?
Yes. Your document library is shared across models, so switching from Claude to GPT never means re-uploading files or losing context.
One app for every model
Claude, Gemini, and GPT from $10/month. Free to start, no signup needed for your first chat.
Start chatting