the biggest giveway is actually not the writing style, but the content
"using GPT-4o-mini for query rewriting" -> model from 2024, when RAG was trendy, and all the langchain, llama-index, etc, docs mentioned this specific model
"using GPT-4o-mini for query rewriting" -> model from 2024, when RAG was trendy, and all the langchain, llama-index, etc, docs mentioned this specific model
and for the record, my last employer was still using gpt-4o and gpt-4o mini last year. and they are an F500 (not that it means anything, just for context).
This is absolutely not a small draft review or edit.