There is no subscription for 1st party deepseek models, the ones that exist are all fronting as middlemen for discounted openrouter providers that serve quantized models with worse cache retention. The only real option for deepseek has been API for a few months now.

oai and anthropic also subsidize the hell out of their subs compared to what you will find in smaller competitors, a $20 codex sub gets you like $100-150 usage/wk which goes way further than 2x opencode go (which would only net out to $120 of deepseek 4.1 usage a month, on top of being low performing quantized trash).