Sidestream

The AI client with a unique, powerful sidebar about your chat

Useful, interesting, amusing, and critical information you won't find in any other app

Human conversation is better than AI conversation because people aren't "helpful assistants"

They know something relevant and interesting that you wouldn't ask about, and eagerly tell you about it.

They're reminded of something cool or amusing, and steer the conversation in a more fun and exciting direction.

They realize that one of you misspoke, made an incorrect assumption, or that you've been talking past each other - and they course correct the conversation.

This app does ALL of that and makes your conversations with AI way more useful and interesting than you've experienced before

“These look useful!”

Packed with useful features and thoughtful design choices

Six "discovery" modes Useful & Informative, Obscure & Interesting, Amusing & Entertaining, Lateral Thinking, Skeptical & Critical, Fact Checker

Bring your own API keys - Anthropic Claude, OpenAI ChatGPT, and/or Google Gemini No need for subscriptions to use these companies' best models. Pay only for what you use. No usage limits.

Add "discoveries" to your main chat with one click

Switch models and even AI companies in the middle of a chat

Voice input

Forking/branching chats

Export any chat to easily shareable HTML files

Completely free & open source

Mac, Windows, and Linux versions

What are "Discoveries"?

The discovery engine specifically looks for:

Lesser-known but highly relevant information
Content you wouldn't have asked for because you didn't know it existed
Fascinating observations to steer the conversation in more exciting directions
Constrasting and alternative views

NOT the obvious first-page Google results, Wikipedia summaries, or mainstream articles

This app requires you to have an API key from Anthropic, OpenAI, and/or Google Gemini

Learn more about API keys

Ready to try it?

Available for macOS, Windows, and Linux

Download Now