From 51e03a39b7264e3a7c6b4aae13ee31b563700225 Mon Sep 17 00:00:00 2001
From: Chris Dumas <chrisldumas@hotmail.com>
Date: Thu, 3 Sep 2026 18:08:44 +0000
Subject: [PATCH] Reduce latent upscale branch memory

---
 dumas_h3_longvideos.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dumas_h3_longvideos.py b/dumas_h3_longvideos.py
index 7857e42..1a835d2 100644
--- a/dumas_h3_longvideos.py
+++ b/dumas_h3_longvideos.py
@@ -6818,6 +6818,8 @@ class H3LongVideos:
                     refined_out = {"samples": comfy.nested_tensor.NestedTensor((refined_video, full_audio))}
                 timing["latent_upscale_sample"] += time.perf_counter() - latent_start
                 refined_out = _video_only_refined_latent(upscale_latent, refined_out)
+                del upscale_latent, upscaled_video, full_audio
+                mm.soft_empty_cache()
             except Exception as e:
                 if _is_oom(e):
                     e._h3_stage = "sampling"