LlamaFactory Author Open-Sources PenguinHarness: Build Self-Evolving Agents for $0.03

Zheng Yaowei, the author of LlamaFactory, has open-sourced PenguinHarness, a harness that supports multi-agent self-evolution and can automatically build and optimize agents at extremely low cost. The tool uses the file system as the single source of truth, enabling agent self-iteration through file operations, and claims to outperform OpenAI's Codex in cost and efficiency.

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