unsloth/studio/backend
Daniel Han c947b33ef8 Extend fp8 black-frame deny to HunyuanVideo-1.5; keep LTX-2 on fp8
Measured the fp8 DiT auto-quant path across the remaining dense-pipeline video families on
B200 (production torch._scaled_mm per-row fp8, no MSLK):
  - HunyuanVideo-1.5 (480p + 720p repacks): every frame black (mean luma 0.0, LPIPS 0.82);
    int8 is clean (mean 102.7 vs dense 99.9). Same failure as Wan / qwen-image.
  - LTX-2: fp8 renders clean (mean 153.7, matches int8's 157.7) -- NOT a black-frame family.

So deny fp8/mxfp8/nvfp4 for hunyuanvideo-1.5 and hunyuanvideo-1.5-720p (fall to int8), and
deliberately leave LTX-2 on fp8. The deny stays measured per family, not a blanket video rule:
a blanket deny would have wrongly forced LTX-2 off fp8. Adds a Hunyuan deny test that also
asserts LTX-2 keeps fp8; 49/49 transformer-quant tests pass.

video_speedmem_bench.py gains guidance_via_guider support (HunyuanVideo-1.5 sets CFG on a
guider component and its __call__ takes no guidance_scale / callback_on_step_end), so the
harness can drive Hunyuan the same way the loader does.
2026-07-08 15:12:00 +00:00
..
assets Add DeepSeek-V4-Flash-GGUF to Studio with none/high/max reasoning (#6908) 2026-07-07 06:13:43 -07:00
auth Studio: opt-in OpenAI /v1 model auto-switch and idle keep-warm (#6392) 2026-07-01 06:42:23 -07:00
core Extend fp8 black-frame deny to HunyuanVideo-1.5; keep LTX-2 on fp8 2026-07-08 15:12:00 +00:00
hub Fix Studio custom folders on Linux external drives (#6799) 2026-07-03 19:10:04 +01:00
loggers Studio: trim serving-log noise and surface llama-server engine stats (#6377) 2026-06-17 05:37:57 -07:00
models Auto-quantize the VAE (image/video decoder) to fp8 (default on, gated) 2026-07-08 10:04:52 +00:00
plugins Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
requirements Merge remote-tracking branch 'origin/main' into fold-integration 2026-07-07 05:52:16 +00:00
routes Auto-quantize the VAE (image/video decoder) to fp8 (default on, gated) 2026-07-08 10:04:52 +00:00
state Studio: shareable per-checkpoint preview links (#6486) 2026-06-24 06:31:53 -07:00
storage Sort chat recents by last activity (#6844) 2026-07-07 17:54:32 +01:00
tests Extend fp8 black-frame deny to HunyuanVideo-1.5; keep LTX-2 on fp8 2026-07-08 15:12:00 +00:00
utils fix: match qwen3-thinking double-newline in train_on_responses_only response pattern (#6926) 2026-07-07 21:28:18 +03:00
__init__.py Final cleanup 2026-03-12 18:28:04 +00:00
_platform_compat.py Reduce and tighten code comments and docstrings repo-wide (#6095) 2026-06-08 23:09:51 -07:00
cloudflare_tunnel.py Reap Studio child processes when the parent dies abnormally (#6425) 2026-06-18 05:51:22 -07:00
colab.py Studio Colab: opt-in shareable Cloudflare tunnel link (#6684) 2026-06-26 00:56:23 -07:00
main.py Scope the diffusion dataset body-cap passthrough to the exact upload route 2026-07-07 09:51:44 +00:00
run.py Studio: fix torch CUDA undefined-symbol errors from a conflicting LD_LIBRARY_PATH (#6905) 2026-07-06 23:48:23 -07:00
startup_banner.py Fix Windows Studio UTF-8 startup handling (#6614) 2026-07-01 13:47:33 +01:00