How can I use claude-3-opus 200k on long context chat?

[AuspiciousSolitude]

I got it to work following this post.

[Solved] Please add claude-3-opus-200k and gpt-4-turbo-128k (and gpt-4-vision-128k) to Long Context Chat when on our own API key

You need to manually create claude-3-opus-200k in Models