Quantized
GGUF
weights and extracted components for running JD's
JoyAI-Echo
— a text →
video + audio
model — on consumer GPUs.
The original release is a single ~46 GB bf16 checkpoint built for ~48 GB-class hardware. These files let it run on
8 GB VRAM + 16 GB RAM
through the companion ComfyUI nodes.
⚠️ Experimental. These run, but on small hardware loads and the first encode are slow. See the node repo for expectations and troubleshooting.
What's in this repo
File
What it is
Notes
JoyAI-Echo-DiT-Q2_K.gguf
Diffusion transformer, Q2_K
Smallest / lowest RAM. Start here on 8 GB.
JoyAI-Echo-DiT-Q4_K_M.gguf
Diffusion transformer, Q4_K_M
Higher quality, more RAM.
joyai_echo_video_vae.safetensors
Video VAE
Required.
joyai_echo_audio_vae.safetensors
Audio VAE
Required.
joyai_echo_vocoder.safetensors
Vocoder
Required for audio.
joyai_echo_embeddings_processor.safetensors
Text-embedding connector
Required.
joyai_echo_config.json
Architecture config
Also ships inside the node pack.
(Sizes are approximate; check the file listing. Q2_K is the lighter option, Q4_K_M the heavier/higher-quality one.)
Not included: the text encoder
JoyAI-Echo uses
Gemma-3-12B
as its text encoder. It isn't rehosted here — download
gemma_3_12B_it_fp8_scaled.safetensors
(Comfy-Org from
google/gemma-3-12b-it
.
Why GGUF (and why these specific files)
Stock ComfyUI GGUF loaders build the
wrong architecture
for JoyAI-Echo — it's a
modified
LTX-2.3 (different
scale_shift_table
and connector dimensions). The companion nodes rebuild it correctly with JoyAI's own configurator and keep the DiT weights packed in GGUF form, dequantizing on the fly so the model fits in limited RAM/VRAM.
The VAEs, vocoder, and connector are extracted from the original checkpoint as standalone files so you don't need the 46 GB bundle at runtime.
Download the files above and place them in the ComfyUI folders listed in the node README (
models/unet
,
models/vae
,
models/audio_encoders
,
models/text_encoders
).
Add the
RebelsJE_StagedPipeline
node →
CreateVideo
→
SaveVideo
, pick the files from the dropdowns, prompt, and queue.
Pick
Q2_K
first if you're on 8 GB; move up to
Q4_K_M
if you have RAM headroom and want better quality.
These quantized weights are derived from JoyAI-Echo and are released
for academic research and non-commercial use only
, following the
upstream JoyAI-Echo license
. Gemma components (downloaded separately) are governed by
Google's Gemma license
. By downloading you agree to those terms.
Runs of chfm JoyAI-Echo_GGUF on huggingface.co
15
Total runs
0
24-hour runs
-2
3-day runs
-2
7-day runs
8
30-day runs
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