AI Video Generation on Your PC: LTX-Video & HunyuanVideo

Local Video Generation in 2026

AI video generation used to require datacenter GPUs. In 2026, consumer hardware can produce usable video clips in minutes. Two models lead the pack for local use: LTX-Video and HunyuanVideo.

Both are available in the Thumper-Run catalog with one-click installation.

LTX-Video: Fast and Lightweight

LTX-Video is optimized for speed on consumer GPUs. Key specs:

• Minimum VRAM: 8 GB (short clips, low resolution)
• Recommended VRAM: 12 GB (5–10 second clips at 512×512)
• Generation time: 30–90 seconds for a 5-second clip on RTX 4060
• Strengths: Fast iteration, good for prototyping, text-to-video and image-to-video modes

HunyuanVideo: Higher Quality

HunyuanVideo produces more detailed and coherent videos but requires more resources:

• Minimum VRAM: 12 GB
• Recommended VRAM: 16–24 GB
• Generation time: 3–10 minutes for a 10-second clip on RTX 4080
• Strengths: Better temporal coherence, higher resolution output, more realistic motion

Getting Started

1. Install your chosen model from the Thumper catalog
2. The model pack system downloads the required weights (~8–15 GB)
3. Launch the app and enter a text prompt
4. Adjust resolution, frame count, and guidance scale
5. Click Generate and wait

Prompt Tips for Video

Video prompts need more specificity than image prompts:

• Describe motion: "a cat walking across a sunny windowsill" not just "a cat on a windowsill"
• Specify camera: "slow dolly forward" or "static wide shot"
• Keep it simple: One subject, one action, one scene. Complex multi-subject prompts usually fail.
• Include style: "cinematic, film grain, warm color grading" helps guide the aesthetic

Performance Optimization

• Use BF16 precision on AMD GPUs (FP16 causes artifacts). See the AMD guide.
• Start with low resolution (320×320) and short durations (3 seconds) to test prompts before scaling up
• Close other GPU applications during generation—video uses nearly all available VRAM
• The GPU detection system will warn you if your hardware cannot handle the selected settings

Use Cases

• Social media content – short clips for TikTok, Instagram Reels
• Prototyping – visualize scenes before live-action shooting
• Game development – generate cutscene concepts and background animations
• Music videos – combine with ACE-Step for a fully AI-generated music video

Ready to try it? Download Thumper-Run free →