In both places I've worked at in the past two years (F500), subscription plans were banned due to data privacy concerns. Everyone _had_ to use the provisioned API tokens (even if they had a personal subscription)
Other providers also charge similar prices (who are obviously not subsidising anything) for running DeepSeek models on their own infrastructure.
OpenCode Go sort of provides a "subscription" which will let you use DeepSeek but they're extremely transparent about what they're offering.