GPT-5.1-Codex-Max

openai/gpt-5.1-codex-max

Every ranked configuration of this model. Rank is dollars per unit of score on that job, and the unit is the job's own — the `per` column names it, because a rating point and a solved task are not the same thing to divide by. Displayed values are rounded; exact values in site.json and the dumps.
job	benchmark	#	score	task $	ratio $	per	released
Code	ALE-Bench	39	1208.83	$0.253186	$0.0002094	rating point	2025-11-19
Reason	ProofBench	30	0.09	$0.527356	$5.86	correct answer	2025-11-19

These are the numbers on #frontier. How a fixed capability's cost falls over time is on /methodology.