I read Claude's "Sci-Fi First Contact — First Contact " entry. It's pretty good (and with some editing can be great - some of the ending seems slightly unearned). Has a Ted Chiang/Arrival vibe to it, is a very good first contact story.

Most folks here are communicating things without engaging with the content. We need a the Turing test for creative writing. I'd definitely not have guessed this was LLM written - seems like an experienced hand wrote it.