DeepSeek Harness: Free Agent Loop, Costlier Tokens 2026
August 19, 2026
DeepSeek open-sourced its agent harness under MIT and it passed 161,000 GitHub stars in six days, then raised API prices right where agent loops hurt most.
#deepseek-v4-pro
DeepSeek V4: Open-Weight Frontier at 1/7 the Cost
May 2, 2026
DeepSeek V4 ships 1.6T MoE open weights with 1M-token context: 80.6% on SWE-bench Verified at $1.74/$3.48 per million — roughly 1/7 the output cost of Claude Opus 4.7.