DeepSeek Launches Creator Mode for Harness

November 3: DeepSeek Harness announced in a post on X the launch of Creator Mode, which lets users turn 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, and DeepSeek has previously optimized its V4.1-Flash model for Harness.