I built a landing page with one prompt.
DeepSeek V4.1 Flash: $0.026. Claude Fable 5: $1.21. Same prompt. Same quality. 40x price difference. The model wars stopped being about capability. Now they're about what you can ship for a dollar.
Our nightly cloud agent got expensive.
So we redesigned it with DeepSeek V4 Flash + Qwen 3.8 27B on AMD Ryzen AI Max+. It is a hybrid agent stack built to use fewer cloud tokens. See how:
One task, three workers, three worktrees.
Opus 5 split it into packets, OpenCode 2 workers on DeepSeek 4.1 Flash built the pages in parallel, and I reviewed every diff before merging what passed. All of it on the record. Open source,
China just made DeepSeek V4.1 Flash available through a free API.
Plug it into DeepSeek Harness and build AI agents without paying for the API. I don’t know why more people aren’t doing this. Comment “Agent OS” for the guide.
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