SITUATION EXPLAINED: Why is DeepSeek raising prices right as it ships a Claude Code rival? • V4 Pro goes from a flat $0.44/$0.87 to $0.66/$1.98 off-peak and $1.32/$3.96 at peak, effective Sunday • Alongside it, DeepSeek Harness shipped in developer preview under an MIT license, with every part of the agent runtime built as a swappable plugin • Claude Code is closed-source. DeepSeek is open-sourcing its equivalent, so anyone can fork it and point it at a different model @theojaffee: "The thing…