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Qwen3.6 actually performs better when run through the Codex harness than through its own purpose-built Qwen-Code harness.
Contrary to the expectation that Qwen3.6 would perform best in its "native" Qwen-Code harness, Raschka's benchmark showed it actually did better when run through Codex, suggesting harness-model pairing may matter less than assumed. ✦ AI generated
Sebastian Raschka · Ahead of AI · 2026-06-27 · original ↗
When rerunning the test cases from the Agent Capability Assessment section, to my surprise, Qwen3.6 does actually perform better via Codex compared to its "native" Qwen-Code coding harness, as shown below.
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- ·Qwen3.6 retested on Agent Capability Assessment cases
- ·Performed better via Codex than native Qwen-Code harness
- ·Result surprised Raschka, defying native-harness expectation
- ·Harness-model pairing may matter less than assumed
- ·'Native' coding harness isn't always the best fit
- ·Cross-harness performance worth re-testing broadly
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