Open-weight near-frontier quality at roughly a tenth of flagship pricing.
DeepSeek V4 Pro is the open-weight value champion: quality that lands close to the proprietary flagships for a fraction of the price, with a 1M-token context. Open weights also mean you can self-host for privacy. It's the model that anchors many cost-conscious agent setups.
Cost-conscious agents that still want top-tier output.
The model picks the moves; the agent runs the loop, the tools, and the guardrails. Once you've chosen a model, see which agent gets the most out of it.