15 harnesses, same result: informal test concludes agent harnesses don't matter
airesearch12 · x · 2026-09-18
- User @xeophon reports running the same "Hello World" task through 15 different harnesses with Fable 5.1, maxing out Claude Max x20 rate limits in the process.
- All harnesses produced identical results, leading to the conclusion that harnesses don't matter — at least for this trivial task.
- The thread highlights how rate-limit-heavy such informal experiments can be; conclusions should be taken with a grain of salt given the single-task setup.
Related event: 15 harnesses, identical results spark eval benchmark debate(2 posts)→
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