ByteDance's new HarnessDev benchmark tests whether LLMs can build their own agent harnesses - the code that surrounds a ...

ByteDance's new HarnessDev benchmark tests whether LLMs can build their own agent harnesses - the code that surrounds a model to enable tool use and multi-step reasoning. Only 34 of 64 evolution changes generalised across tasks, showing self-improving agents remain challenging to build. https://www.marktechpost.com/2026/09/11/can-llms-engineer-their-own-agent-harness-bytedance-seeds-harnessdev-says-only-34-of-64-changes-generalize/ #AIagent #AI #GenAI #AgenticAI

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