TLDR Tech / AI
Meta-Harness: End-to-End Optimization of Model Harnesses
The performance of large language model systems depends not just on model weights, but also on their harnesses. Meta-Harness is an outer-loop system that searches over harness code for LLM applications. Its harnesses surpass the best hand-engineered harnesses on agentic coding benchmarks. Meta-Harness shows how richer access to prior experience can enable automated harness engineering.
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