DeepSeek Harness announced the launch of Creator Mode on X, enabling users to convert ideas into ready-to-use plugins. Official examples include a design workspace, a sandbox game, and a 3D LLM visualization tool. According to Bloomberg, the move is aimed at strengthening DeepSeek's AI Agent products. DeepSeek Harness is an open-source Agent tool released by DeepSeek, which previously optimized its V4.1-Flash model for Harness.