This model card is the version-controlled source for The repository contains a mixed NVFP4/FP8 representation of Qwen3.8-27B. It combines the official BF16 checkpoint with the fixed packed Text weights from unsloth/Qwen3.8-27B-NVFP4 in the native Tachyon.tachyon artifact format. The artifact is intended only for Tachyon; it is not a Transformers checkpoint, Safetensors distribution, or GGUF file. The artifact uses the Qwen3.5 Dense architecture. All 64 Text layers use NVFP4 MLP weights and an NVFP4 output head; the token embedding, attention input/output projections, and GDN Q/K/V/Z and output projections use row-scaled FP8. Control weights use BF16, with separate MTP, Vision and DFlash2…