\
  The most prestigious law school admissions discussion board in the world.
BackRefresh Options Favorite

Codex 5.3 extra-high is so good its nuts

also way faster than 5.2
robot daddy
  02/06/26
what do you use it for
.,.,.;;,;.,;:,:,,:,.,:,::,..;.,:,.:;.:.,;.:.,:.::,
  02/06/26
AI-related development. I just used it on extra high mode an...
robot daddy
  02/06/26
The SWE Bench Pro graph with number of tokens vs. accuracy i...
.,.,...,..,.,.,:,,:,...,:::,...,:,.,.:..:.
  02/06/26


Poast new message in this thread



Reply Favorite

Date: February 6th, 2026 12:25 AM
Author: robot daddy

also way faster than 5.2

(http://www.autoadmit.com/thread.php?thread_id=5831622&forum_id=2most#49650246)



Reply Favorite

Date: February 6th, 2026 12:25 AM
Author: .,.,.;;,;.,;:,:,,:,.,:,::,..;.,:,.:;.:.,;.:.,:.::,


what do you use it for

(http://www.autoadmit.com/thread.php?thread_id=5831622&forum_id=2most#49650249)



Reply Favorite

Date: February 6th, 2026 12:31 AM
Author: robot daddy

AI-related development. I just used it on extra high mode and it edited (and created some new unit tests) 14 files in one shot, and fixed it to a quality level that would have taken like 12 rewrites with codex 5.2. plus it was like twice as fast.

(http://www.autoadmit.com/thread.php?thread_id=5831622&forum_id=2most#49650256)



Reply Favorite

Date: February 6th, 2026 1:37 AM
Author: .,.,...,..,.,.,:,,:,...,:::,...,:,.,.:..:.


The SWE Bench Pro graph with number of tokens vs. accuracy is interesting. At the limit, it converges on 5.2 codex max. Models are now becoming more token efficient, but not necessarily developing new capabilities?

(http://www.autoadmit.com/thread.php?thread_id=5831622&forum_id=2most#49650280)