DeepSeek V4 Pro 0423 vs GPT-5.5

DeepSeek V4 Pro 0423 against GPT-5.5
DeepSeek V4 Pro 0423GPT-5.5
Coding index38.771.3
Benchmarks behind it Verified, 5 benchmarks Verified, 5 benchmarks
Output $/Mtok$2.60$30.00
Cost per solved task$0.57$1.65
Context window1.05M1.05M