Comparing Codex, Claude Code, and DeepSeek Harness: Three Types of Choices for Switching Models, Connecting APIs, and Building Automation
One-sentence summary: If you want to build a project directly, start by evaluating Codex or Claude Code; if you want to replace the model adapter, tools, and execution loop, focus on DeepSeek Harness; if you want it to run automatically every day, you’ll also need to solve deployment, permissions, and scheduling separately. Changing the API…