DeepSeek Harness + V4 Flash = The END of Claude Code?
DeepSeek just released their own coding agent — the DeepSeek Harness — and I gave it a full website to build. It cost me 10 cents. 19,707,283 tokens. 159 API requests. 100% cache hit rate. $0.10. And what came out was not a slop site. It generated a hand-built vector illustration of a Rolls-Royce, in a navy and gold luxury palette, on a chauffeur hire site that looks like an agency charged five figures for it. Get HarborSEO Annual: https://harborseo.ai/annual Work with us: https://incomestreamsurfer.com Try Bright Data: https://brightdata.com/?promo=incomestreamsurfers or context — yesterday I ran the same kind of task on Grok 4.6, the model currently sitting at the top of the GDPVal leaderboard. It cost $0.86 and produced an SVG that looked like a melted slug with two floating rings for wheels. The cheap model won. It wasn't close. GET IT RUNNING IN 10 SECONDS npx @deepseek-ai/dsh web Or clone it: https://github.com/deepseek-ai/deepseek-harness THE RUN • Model: DeepSeek-V4-Flash on High • 19,707,283 tokens • 159 API requests • 4 turns, 161 steps • LLM time 23m57s, tool calls 1m47s • TTFT 1.9s avg, 142 tokens/sec • Cache hit rate: 100% • Total cost: $0.10 WHY THE CACHE RATE MATTERS 100% cache hit is the whole story. That's what turns 19.7 million tokens into ten cents. Most agents burn your budget re-reading the same context on every turn — this one doesn't. 🚀 SPONSOR — Harbor SEO Once your site is live it needs content. Harbor crawls your site, finds the keywords and writes the articles — images, internal links and business context included. From €29/month. 👉 https://harborseo.ai I've been saying for months that the cheap models paired with an open agent beat the expensive stack. This is the clearest example I've filmed. #DeepSeek #AICoding #claudecode deepseek harness, deepseek v4 flash, deepseek coding agent, deepseek agent, dsh, ai coding, ai coding agent, claude code alternative, cheapest ai coding, free ai coding agent, deepseek vs claude, deepseek vs grok, grok 4.6, ai website builder, build website with ai, open source coding agent, vibe coding, ai agent tutorial, deepseek tutorial, cheap ai model, ai coding tools 2026, coding agent comparison, deepseek v4, ai svg generation, best ai for coding, opencode, openrouter, llm cost
