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Qwen3.8-27B (Q4_K_M) vs Claude Opus on the same build spec

This story is from 2026-08-25. It is preserved in the archive; the latest stories are on the live feed.

TL;DR: Same product spec, same locked stack, hidden tests. Opus 21/21 in one pass, 344s. Qwen3.8-27B-UD-Q4_K_M on a single 24GB 4090 got 19/21 in one pass, 801s — and 21/21 after I gave it the failure symptom with no hint. Then I looked past the tests and found a concurrency bug in the "21/21" buil…

Read the full story at r/LocalLLM ↗

Timeline · 3 reports

  1. 2026-08-26 19:35 · r/LocalLLM
    Compared Qwen 3.8 27B community quants on RTX 6000 vs Claude Opus 4.6
  2. 2026-08-26 19:32 · r/LocalLLaMA
    Compared Qwen 3.8 27B community quants on RTX 6000 vs Claude Opus 4.6
  3. 2026-08-25 14:54 · r/LocalLLM
    Qwen3.8-27B (Q4_K_M) vs Claude Opus on the same build spec

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