AI Video Models with Audio & Sound: 5 Models Compared
Which AI video models generate native sound? Compare dialogue, sound effects, and music generation across 5 models.
Most AI video generators produce silent clips, requiring you to add sound effects, music, and dialogue in post-production. But a growing number of models now generate native audio alongside the video — synchronized sound effects, ambient audio, and even spoken dialogue. This comparison covers the 5 AI video models that support audio generation.
Veo 3.1 from Google leads the pack with the most natural audio generation, including realistic dialogue and environmental sounds. Kling v3 Pro and Kling O3 Standard produce solid sound effects and ambient audio. Kling v3 Standard and LTX 2 Pro offer basic audio capabilities at lower price points. The quality gap between premium and budget audio is significant.
On Melies, audio generation is available as an option when using supported models. Generate a video with and without audio to compare, and only pay the audio credit premium when you need sound.
Updated March 2026
Quick Recommendation
Start with LTX 2 Pro (50 credits) for the best value. When quality matters more than cost, step up to Veo 3.1 (400 credits). All 5 models are available on Melies — try each with the same prompt and compare.
Video Model Specs: Side-by-Side Comparison
| Model | Released | Cost ↓ | Speed | Duration | Img input | Audio |
|---|---|---|---|---|---|---|
 Veo 3.1 | Oct 2025 | 400 | Slower | 8 seconds | ||
 Kling v3 Pro | Feb 2026 | 100 | Medium | 15 seconds | ||
| Kling O3 Standard | Feb 2026 | 80 | Medium | 15 seconds | ||
| Kling v3 Standard | Feb 2026 | 60 | Medium | 15 seconds | ||
 LTX 2 Pro | Oct 2025 | 50 | Fast | ~4.8 seconds at defaults (121 frames / 25fps) |
Each Model at a Glance
Veo 3.1
Google400Google's most advanced video model with native audio, 4K resolution, and reference image support.
Kling v3 Pro
Kuaishou100Premium Kling model with multi-shot sequences, voice IDs, and up to 15s duration.
Kling O3 Standard
Kuaishou80Kling's latest O3 image-to-video model with character elements, multi-shot sequences, and voice support.
Kling v3 Standard
Kuaishou60Kling's image-to-video model with custom character elements and end-frame control.
LTX 2 Pro
Lightricks50Lightricks' model with camera LoRA presets, image-to-video support, and multiple output formats.
Which AI Video Model Should You Pick?
Best value for everyday use
At 50 credits, LTX 2 Pro gives you the most generations per plan. Camera movement effects, multiple export formats, fast generation.
Maximum quality, no budget concerns
Veo 3.1 at 400 credits delivers the highest quality. Highest quality video with sound, cinematic 4K output.
Video with sound effects or dialogue
LTX 2 Pro generates native audio alongside video — no post-production sound editing needed.
Animating a still image
Upload a photo or AI image and bring it to life. LTX 2 Pro at 50 credits is the most affordable option with image input.
Longer clips for storytelling
Supports up to 15-second clips — enough for complete scenes and narratives.
Frequently Asked Questions
Try All 5 Models on Melies
Veo 3.1, Kling v3 Pro, Kling O3 Standard and more — all in one workspace. Switch models with one click, compare results side by side. Free credits included.
