Ask HN: Opus 5 is unusable for writing, even internal use. Alternatives/fix?

I'm having a tough time using Opus to produce blog-grade writing. Claude produces jargon heavy, market-y language that no human would ever write, much less want to read. This issue exists even when I ask it to write internal reports or short memos. Opus is not working for writing in any task.

PS: I am not interest in the model's coding skills, only its ability to write or partner with me in writing.