DEEPSEEK SEA

DeepSeek's open-weight models — frontier reasoning at a fraction of the cost. Current lineup on the chart: DeepSeek V4-Pro (refreshed to the -0813 build) and DeepSeek V4-Flash (on the -0731 build), with V3.2 and the reasoning-specialist R1 still charted below. Available via API and self-host; known for aggressive price-performance and used heavily in cost-sensitive agent deployments. The DeepSeek Harness for agent developers is in developer preview.