GPT-5 vs GPT-5.5

Reading a 26.2K-token pull request costs $0.131 on GPT-5.5, 4.0× the $0.0328 it costs on GPT-5. Both are GPT models, so the difference is one version of the same line against another.

GPT-5GPT-5.5

Side by side

GPT-5 and GPT-5.5 side by side
Figure	GPT-5	GPT-5.5
Price tier	Mid-range	Frontier
Typical review calllist price	$0.0569 (better)	$0.2035
Input / 1M tokens	$1.25 (better)	$5.00
Output / 1M tokens	$10.00 (better)	$30.00
Context window	–	1.1M

Not benchmarked yet

GPT-5 and GPT-5.5 aren't benchmarked yet, so this page compares list prices only. Measured bugs caught, false alarms and a bug-by-bug comparison appear here once both have results.

See measured models