DeepSeek V4: Open-Source Frontier at 1/6 the Cost
April 25, 2026
DeepSeek V4 launched April 24, 2026: open-source 1.6T MoE Pro scores 80.6% on SWE-bench Verified at $1.74/$3.48 per million — 1/6 the cost of Opus 4.7.
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