Qwen3.8 125B (6B active) Flash-Next

User reports running Qwen3.8-Flash-Next-UD-IQ3_XXS at Q8_0 KV-cache with llama.cpp, getting 30-40 t/s generation and 530 t/s prefill at 220,000 context. Setup is llama.cpp with UD-IQ3_XXS quant and Q8_0 KV cache, limited by VRAM. User stopped using Strata after 12 hours of coding due to reliability concerns, citing hallucinations and coding errors, but notes Strata greatly increased prefill speed and is a worthwhile project.