[diffusion] feat: support loading mixed w4a8 text encoders - #36037
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# Conflicts: # docs/cookbook/diffusion/MiniMax/MiniMax-H3.mdx # docs/docs/sglang-diffusion/quantization.mdx # python/sglang/multimodal_gen/runtime/layers/quantization/configs/kitchen_w4a8_config.py # python/sglang/multimodal_gen/runtime/layers/quantization/kitchen_w4a8.py # python/sglang/multimodal_gen/runtime/loader/transformer_load_utils.py # python/sglang/multimodal_gen/runtime/utils/quantization_utils.py
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…n-transport1 * 'main' of https://github.com/sgl-project/sglang: (326 commits) [diffusion] feat: cache LoRA-merged weights in files the page cache can hold (sgl-project#36062) [diffusion] Speed up LingBot high-quality VAE decode (sgl-project#36024) [diffusion] Honor XDG cache for model overlays (sgl-project#36019) Support streaming session on NPU (sgl-project#32597) fix(xpu): read enable_deterministic_inference from the config bag (sgl-project#36149) xeon ci fail fast strategy change (sgl-project#36146) [diffusion] Fix Hunyuan QKV pack indexing at production video shapes (sgl-project#36009) [diffusion] Refresh quality and BCG benchmark skills (sgl-project#36016) [MoE] Gather the cutlass MoE activation and its scales in one launch (sgl-project#34915) [diffusion] feat: add plain component weight overrides (sgl-project#36086) [diffusion] feat: support loading mixed w4a8 text encoders (sgl-project#36037) [diffusion] Default Hunyuan VAE to tiled decode (sgl-project#36012) fix(xpu): enable compressed-tensors FP8 W8A8 on XPU (RedHatAI FP8-dynamic models) (sgl-project#33057) chore: move cuda_vmm_utils.py under srt/utils/ (sgl-project#36053) [Intel XPU] Add xpu pass for biased_topk and hash_topk (sgl-project#33323) [CPU] Fix NUMA/core binding for DP ranks (sgl-project#32856) [Fix] Harden FlashAttention CUDA graph metadata bounds (sgl-project#35454) [XPU] Use a fused GDN kernel from sgl-kernel for Qwen3.5 (sgl-project#33354) [diffusion] Fuse LongCat-Image QKNorm and interleaved RoPE (sgl-project#35995) [diffusion] Keep LongLive2 components resident on large GPUs (sgl-project#35993) ... # Conflicts: # python/sglang/srt/multimodal/processors/base_processor.py # python/sglang/srt/server_args.py
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Summary
Stacked on #36036.
--component-paths.text_encoderflowThe concrete public checkpoint contract is
Winnougan/MiniMax-H3-INT4_Convrot_ComfyUI/qwen3vl_32b_minimax_h3-w4a8_convrot.safetensors: 350 W4A8 linears plus one scalar-scale INT8 embedding. The unmarked vision tower remains BF16.Validation
pre-commit run --all-filesLocal unit tests were not run; they are left to CI per the diffusion development workflow.
Size against #36036
CI States
Latest PR Test (Base): ✅ Run #32687180655
Latest PR Test (Extra): ❌ Run #32687180582
Latest PR Test (AMD ROCm 7.2): ⏳ Run #32687180615