DeepSeek V4: The Open-Source Model Frontier Labs Feared

DeepSeek V4: The Open-Source Model Frontier Labs Feared DeepSeek V4 ships under MIT with $0.30/M output tokens — 83x cheaper than Claude Opus 4.7 — while scoring 80.6% on SWE-bench Verified. The agentic-coding price floor just moved an order of magnitude. DeepSeek V4-Pro charges $0.30 per million output tokens. Claude Opus 4.7 charges $25. GPT-5.5 charges $30. That is an 83-to-100x gap, and the mo...