GPT-5.1 vs GPT-5.2

GPT-5.1 against GPT-5.2
GPT-5.1GPT-5.2
Coding index40.455.9
Benchmarks behind it Verified, 3 benchmarks Verified, 3 benchmarks
Output $/Mtok$10.00$14.00
Cost per solved task$1.02$1.91
Context window400K400K