DeepSeek to Keep DeepSeek V4 Pro API Service Running After Sept 14

The reversal matters less as a technical milestone than as a signal about retention economics in the model-API market: a provider that had signaled a shutdown is instead extending access on unchanged pricing, which suggests demand for this model has not migrated to its successors as cleanly as expected. That cuts against the prevailing assumption that each new generation makes the prior one redundant for API users. The open question is whether the extension reflects durable demand from workloads still pinned to this model or a temporary bridge, and whether future adjustments arrive as pricing changes or as a genuine sunset.