ltx2_upsample.json

{
    "infer_steps": 8,
    "target_video_length": 121,
    "target_height": 1024,
    "target_width": 1536,
    "attn_type": "sage_attn2",
    "sample_guide_scale": 1,
    "sample_shift": [2.05, 0.95],
    "enable_cfg": false,
    "cpu_offload": false,
    "num_channels_latents": 128,
    "fps": 24,
    "audio_fps": 24000,
    "audio_mel_bins":16,
    "double_precision_rope": true,
    "dit_quantized_ckpt": "Lightricks/LTX-2/ltx-2-19b-distilled-fp8.safetensors",
    "dit_quantized": true,
    "dit_quant_scheme": "fp8-pertensor",
    "skip_fp8_block_index" : [0, 43, 44, 45, 46, 47],
    "distilled_sigma_values": [1.0, 0.99375, 0.9875, 0.98125, 0.975, 0.909375, 0.725, 0.421875, 0.0],
    "use_upsampler": true,
    "upsampler_original_ckpt": "Lightricks/LTX-2/ltx-2-spatial-upscaler-x2-1.0.safetensors",
    "distilled_sigma_values_upsample": [0.909375, 0.725, 0.421875, 0.0]
}