Jediah Katz proposes that Harness coding patches are being absorbed by models

On October 21, 2026, Jediah Katz, head of Grok Bot and Cursor Harness, offered the judgment that the part of Harness that helps models write code is being absorbed by models, and that fancy Harness no longer increases models' coding ability. He also stated that the three responsibilities of opening up new task boundaries, providing infrastructure and trust/security, and optimizing efficiency still cannot do without Harness. Citing UC Berkeley tests on SWE-bench Lite and Apple and EPFL tests on MLE-Bench, he said that score differences across different Harness are not significant, but per-task cost differences are obvious. He also predicted that within 6 months, 90% of Agent work will leave personal computers and run in the cloud. Currently this judgment is reported by a single source, with no subsequent factual developments yet.

AI-generated from public reports

1. Oct 21· 1 reports

   English translation is being prepared.

   Source:Shao Meng