Jan [0] is MacOS native, open source, similar feel to the ChatGPT frontend, very polished, and offers Anthropic integration (all Claude models).

It also features one-click installation, OpenAI integration, a hub for downloading and running local models, a spec-compatible API server, global "quick answer" shortcut, and more. Really can't recommend it enough!

[0] https://github.com/janhq/jan

I like msty.app. Parallel prompting across multiple commercial and local models plus branching dialogs. Doesn’t do artifacts, etc, though.

If you're willing to settle for a client-side only web frontend (i.e. talks directly with APIs of the models you use), TypingMind would work. It's paid, but it's good (see [0]), and I guess you could always go for the self-hosted version and wrap it in an Electron app - it's what most "native" apps are these days anyway (and LLM frontends in particular).

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[0] - https://news.ycombinator.com/item?id=41988306

You can use https://recurse.chat/ if you have an Apple silicon Mac.

Open-WebUI doesn't support Claude natively (only through a series of hacks) but it is absolutely "THE" go-to for a ChatGPT Pro like experience (it is slightly better).

https://github.com/open-webui/open-webui

Msty [0] is a really good app - you can use both local or online models and has web search, attachments, RAG, split chats, etc., built-in.

[0] https://msty.app

It's not native, but I've been pretty happy with big-AGI. It's just an `npm run` away. I don't use it for coding tasks, though.

Its most unique feature is its "beam" facility, which allows you to send a query to multiple APIs simultaneously (if you want to cross-check) and even combine the answer.