GPT-5.1-Codex vs GPT-5.2-Codex

GPT-5.1-Codex against GPT-5.2-Codex
GPT-5.1-CodexGPT-5.2-Codex
Coding index15.345.4
Benchmarks behind it Partial, 2 benchmarks Verified, 3 benchmarks
Output $/Mtok$10.00$14.00
Cost per solved task$0.892$0.43
Context window400K400K