GPT-5.4 Nano vs Hy4

GPT-5.4 Nano against Hy4
GPT-5.4 NanoHy4
Coding index44.865.2
Benchmarks behind it Partial, 2 benchmarks Partial, 2 benchmarks
Output $/Mtok$1.25$1.2505
Cost per solved task$0.14Not computable
Context window400K1.05M