Operations | Monitoring | ITSM | DevOps | Cloud

GPT-4 API pricing spans $0.10 to $30.00 per million input tokens across the model family. GPT-4.1 is the current recommended production model at $2.00 input / $8.00 output per million tokens. Legacy GPT-4 still runs at $30.00/$60.00 per million tokens -- 15x more expensive for no meaningful quality gain. For finance and engineering leaders accountable for AI spend, choosing the right GPT-4 variant is the single biggest cost lever on your bill.

Every certificate renewal automation tool has to answer one architecture question before it does anything else: where does the private key get generated? A reader who used to be “the certificate guy” at his organization emailed me this week to ask about exactly that: It’s the right instinct. It’s also how most automation tools work. Certbot generates the key on the server, builds a certificate signing request, and the private key never leaves the machine.

We shipped v2 of a small products API on a Thursday. Green CI. Green replay. The new search endpoint worked. I went home feeling competent. Friday morning I ran the same traffic against both builds with proxymock and compared the SQL. v2 had added 80 queries on the same HTTP script. A per-product audit COUNT was firing inside the list handler. A startup migration had run ALTER TABLE and CREATE TABLE audit_log. Total DB time was up 70 ms on a demo that should have been boring.