In my benchmarks of security auditing abilities of models, DeepSeek was roughly an order of magnitude cheaper than either GPT 5.5 or Opus 4.8, less than ten cents per task vs. roughly a buck each for the best American models at the time.

GPT 5.5 Pro was ~230x at almost $23 per task.

DeepSeek is my go-to when I need an API, and local Gemma 4 won't do because it's either too slow or not capable enough. DeepSeek isn't at the frontier but it's good enough for a lot of things, very cheap, and quite fast. Flash is even faster and cheaper, and still better than anything I can host locally.

Almost as if centuries of passing the imperial exam by either skill or cheating influenced Chinese culture a lot.