It’s wild. Regardless of Deepseek direct pricing, on Openrouter itself, the pricing for Pro is comparable to Haiku. Flash is even cheaper. You get Opus 4.5 and better than Sonnet 4.6 performance.
It can't see images so it doesn't do everything Sonnet will do. Still a good deal though.
You can specify the provider on Openrouter to only use Deepseek and get the cheaper pricing.