Codex has been post-trained for coding, including agentic coding tasks. It's certainly not impossible that the better long-horizon agentic performance in Codex

Codex has been post-trained for coding, including agentic coding tasks. It's certainly not impossible that the better long-horizon agentic performance in Codex overcomes any deficiencies in outright banking knowledge that Codex 5.2 has vs plain 5.2.