Benchmark: OpenCode degrades open model performance, Pi framework leads

PMinervini · x · 2026-08-27

A benchmark comparing local LLMs against coding agent harnesses reveals that using OpenCode degrades model performance, while the Pi framework takes the lead. Tests with Red Qwen 3.6 35B-A3B showed a 10 point advantage on SWE-Bench with Pi over OpenCode, ruling out model bias.

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