Why “Not Specifying Model Versions” Fails in Production — and What the 4/40 Result Really Means

https://xeon-wiki.win/index.php/Why_did_o3-mini-high_jump_from_0.8%25_to_4.8%25_on_Vectara%E2%80%99s_benchmark_and_what_it_means_for_document-length_evaluations

5 Critical Questions About Model Versioning and Why I Measured Them Teams often treat model identity as a lightweight detail: "Use the vendor's latest," or "call the API without a version and it will be fine." That assumption hides risk