I Re-Priced My Agent Stack on GPT-6.1 Terra: Here's the Routing Rule I'd Actually Ship

This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.

OpenAI launched GPT-6.1 Terra on October 26, 2026, and if you build agents for a living, the interesting question is not "is it smart?" It is "where does it sit in my routing table?" After reading OpenAI's own numbers as reported on October 26–27, my answer is: Terra becomes the default tier, and t…