Qwen3.8 27B

User reports Qwen 3.8 27B FP8 on two RTX 6000 Pro GPUs with sglang at 150 tk/sec, but tasks take 12x longer than Claude Opus 5. BF16 on the primary card with FP8 offloading took 3 hours versus 1h45m for FP8. Context lengths tested are 256k, 128k (too small) and 500k (faster despite being unsupported). A skill that reads large documentation files hits 80k context before starting. The user compares against Claude Code, Pi Code, Qwen Code and Hermes, and uses ChatGPT 5.6 high for testing.