Claude Sonnet 4.5

anthropic/claude-sonnet-4-5-20250929

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	37	796.15	$0.151558	$0.0001904	rating point	2025-09-29
Reason	ProofBench	22	0.19	$0.65341	$3.439	correct answer	2025-09-29

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