Codex

A tag is a label with no lifecycle: it is for finding things. What rises and falls lives on the register instead.

• 2026-09-30 OpenAI releases GPT-6.1 Sol, an upgrade to GPT-6 Sol · Models and releases · 2 sources
• 2026-09-26 Study finds most tested coding-agent harnesses let agents delete their own execution traces · Research worth knowing · 1 source