OpenGravity

TL;DR

It is a lightweight, browser-based UI for LLMs that lets you use your own API keys without installing another bloated Electron app.

Who is this actually for?

Developers who are tired of paying 'wrapper taxes' and want a no-fuss interface that runs directly in the browser.

The Good

• Zero installation or dependencies; it is pure vanilla JS that works immediately in any tab.
• The BYOK model ensures you pay exactly what the model provider charges with no hidden middleman markups.

The Catch (Potential Downsides)

The UI is likely bare-bones and lacks the polish of enterprise-grade tools. You also risk losing your chat history if you clear your browser cache.