Get access to powerful open-weight models for FREE. DeepSeek V4 Flash, GLM 5.3 Flash, and Laguna S 2.1 are all available in Cline Desktop with no API key required. I picked DeepSeek V4 Pro, pointed it at an empty folder, and asked it to build an evaluation harness for an ML inference pipeline, one that runs test inputs, validates outputs, and logs pass/fail results with failure reasons. It checked the environment, identified available packages, and built a complete, fully tested `ml_eval` package across 9 files from a single prompt. The video above shows the full build, from an empty folder to a complete package. Cline Desktop is the open-source app for open-weight models with 68k GitHub stars, available for Mac and Windows. You can download it for Mac and Windows here: Thanks to Cline for working with me on this post!