Ask HN: What's the best self hosted/local alternative to GPT-4?

Constant outages and the model seemingly getting nerfed[^1] are driving me insane. Which viable alternatives to GPT-4 exist? Preferably self-hosted (I'm okay with paying for it) and with an API that's compatible with the OpenAI API.

[^1]: https://news.ycombinator.com/item?id=36134249