DeepSeek V4.1 Flash vs GPT-5.5

DeepSeek V4.1 Flash against GPT-5.5
DeepSeek V4.1 FlashGPT-5.5
Coding index62.571.3
Benchmarks behind it Verified, 5 benchmarks Verified, 5 benchmarks
Output $/Mtok$0.84$30.00
Cost per solved taskNot computable$1.65
Context window1.05M1.05M