GPT-5.4 Mini vs Hy4

GPT-5.4 Mini against Hy4
GPT-5.4 MiniHy4
Coding index35.865.2
Benchmarks behind it Verified, 5 benchmarks Partial, 2 benchmarks
Output $/Mtok$4.50$1.2505
Cost per solved task$0.70Not computable
Context window400K1.05M