ltx-2/download-models-head-swap-ltx2-windows.ps1

# ============================================================
# CONFIGURATION
# ============================================================
$COMFYUI_ROOT = "C:\ComfyUI_windows_portable\ComfyUI" # Update this path!
$MODELS_BASE = "$COMFYUI_ROOT\models"

# Use your HF Token if models are gated
$HF_TOKEN = "" 

# ============================================================
# DOWNLOAD FUNCTION
# ============================================================
function Download-Model {
    param ([string]$url, [string]$dest)
    if (Test-Path $dest) {
        Write-Host ">>> Skipping: $dest (Already exists)" -ForegroundColor Cyan
    } else {
        Write-Host ">>> Downloading to: $dest" -ForegroundColor Yellow
        $parent = Split-Path -Parent $dest
        if (-not (Test-Path $parent)) { New-Item -ItemType Directory -Path $parent -Force }
        
        $headers = @{}
        if ($HF_TOKEN) { $headers["Authorization"] = "Bearer $HF_TOKEN" }
        
        Invoke-WebRequest -Uri $url -OutFile $dest -Headers $headers -MaximumRetryCount 3
    }
}

# ============================================================
# MODELS LIST
# ============================================================

# --- FLUX.2 KLEIN ---
Download-Model "https://huggingface.co/black-forest-labs/FLUX.2-klein-9b-fp8/resolve/main/flux-2-klein-9b-fp8.safetensors" "$MODELS_BASE\diffusion_models\flux-2-klein-9b-fp8.safetensors"
Download-Model "https://huggingface.co/Comfy-Org/flux2-klein-9B/resolve/main/split_files/text_encoders/qwen_3_8b_fp8mixed.safetensors" "$MODELS_BASE\text_encoders\qwen_3_8b_fp8mixed.safetensors"
Download-Model "https://huggingface.co/Comfy-Org/flux2-dev/resolve/main/split_files/vae/flux2-vae.safetensors" "$MODELS_BASE\vae\flux2-vae.safetensors"
Download-Model "https://huggingface.co/Alissonerdx/BFS-Best-Face-Swap/resolve/main/bfs_head_v1_flux-klein_9b_step3500_rank128.safetensors" "$MODELS_BASE\loras\bfs_head_v1_flux-klein_9b_step3500_rank128.safetensors"
Download-Model "https://huggingface.co/Alissonerdx/BFS-Best-Face-Swap/resolve/main/bfs_head_v1_flux-klein_9b_step3750_rank64.safetensors" "$MODELS_BASE\loras\bfs_head_v1_flux-klein_9b_step3750_rank64.safetensors"


# --- LTX-VIDEO 2 (DEV RECOMMENDED) ---
Download-Model "https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/diffusion_models/ltx-2-19b-dev-fp8_transformer_only.safetensors" "$MODELS_BASE\diffusion_models\ltx-2-19b-dev-fp8_transformer_only.safetensors"
Download-Model "https://huggingface.co/Comfy-Org/ltx-2/resolve/main/split_files/text_encoders/gemma_3_12B_it_fp8_scaled.safetensors" "$MODELS_BASE\text_encoders\gemma_3_12B_it_fp8_scaled.safetensors"
Download-Model "https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/text_encoders/ltx-2-19b-embeddings_connector_dev_bf16.safetensors" "$MODELS_BASE\text_encoders\ltx-2-19b-embeddings_connector_dev_bf16.safetensors"
Download-Model "https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/VAE/LTX2_video_vae_bf16.safetensors" "$MODELS_BASE\vae\LTX2_video_vae_bf16.safetensors"
Download-Model "https://huggingface.co/Kijai/LTXV2_comfy/resolve/main/VAE/LTX2_audio_vae_bf16.safetensors" "$MODELS_BASE\vae\LTX2_audio_vae_bf16.safetensors"

# --- BFS VIDEO LORAS ---
Download-Model "https://huggingface.co/Alissonerdx/BFS-Best-Face-Swap-Video/resolve/main/ltx-2/head_swap_v1_13500_first_frame.safetensors" "$MODELS_BASE\loras\head_swap_v1_13500_first_frame.safetensors"
Download-Model "https://huggingface.co/Alissonerdx/BFS-Best-Face-Swap-Video/resolve/main/ltx-2/head_swap_v1_8750_first_and_last_frame.safetensors" "$MODELS_BASE\loras\head_swap_v1_8750_first_and_last_frame.safetensors"

# --- EXTRAS ---
Download-Model "https://huggingface.co/Lightricks/LTX-2/resolve/main/ltx-2-spatial-upscaler-x2-1.0.safetensors" "$MODELS_BASE\latent_upscale_models\ltx-2-spatial-upscaler-x2-1.0.safetensors"
Download-Model "https://huggingface.co/Kijai/MelBandRoFormer_comfy/resolve/main/MelBandRoformer_fp32.safetensors" "$MODELS_BASE\diffusion_models\MelBandRoformer_fp32.safetensors"

Write-Host "--- ALL DOWNLOADS FINISHED ---" -ForegroundColor Green
pause