DeepSeek V4 Pro vs GPT-5.5: 97% Cheaper, 2 Points Behind on Benchmarks

DeepSeek V4 Pro costs 97% less than GPT-5.5 on output tokens while scoring within 2 points on SWE-bench Verified. A model-by-model, dollar-by-dollar breakd

DeepSeek V4 Pro costs 97% less than GPT-5.5 on output tokens while scoring within 2 points on SWE-bench Verified. A model-by-model, dollar-by-dollar breakdown of when that gap matters and when it doesn't.

Pricing data is verified and updated regularly.