Add support for Claude

[krishpop]

Hi! Wanted to see if adding the claude api to this would be of interest at all?

[w0rp]

Absolutely! @Angelchev is already using Claude and we'll add support for it.

A note on OpenAI integration: If we just add a little more configuration the OpenAI integration can be used for most LLMs, as most models present an OpenAI compatible API.

[WuTheFWasThat]

is this possible now?