Sidestream

A chat app with a side of insights

A free, open-source, cross-platform, cross-model, AI chat app that adds useful, interesting, amusing, and critical information you wouldn't have known about otherwise.

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Human conversation is more rewarding than talking with an AI because people aren't "helpful assistants"

They realize they know something you wouldn't even ask about, and eagerly tell you about it.

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

They realize that one of you misspoke, misremembered, 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

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

Searchable chat history

Export any chat to easily shareable HTML files

Light and Dark modes

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

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