Question 1

What is the best AI video generator in 2025?

Accepted Answer

It depends on your use case. For overall quality and versatility, S-tier models like Wan 2.6, Kling 3.0, Runway Gen-4.5, and Veo 3.1 lead the field. For open-source options you can self-host, Wan 2.2 and LTX-2.3 are top picks. For audio-native video generation, Wan 2.6 and Veo 3.1 stand out. Use the comparison tool above to match models to your specific needs.

Question 2

What is the best free AI video generator?

Accepted Answer

The best free AI video generators are open-source models you can run locally: Wan 2.2 (720p, 24fps, excellent motion), LTX-2.3 (up to 4K at 50fps), HunyuanVideo 1.5 (720p with strong coherence), and SkyReels V2 (infinite-length generation). All are free to download and run if you have a GPU with enough VRAM — typically 12–24GB. You can also run many of these on Floyo without needing your own hardware.

Question 3

How much does AI video generation cost?

Accepted Answer

Costs range from free (self-hosted open-source models) to about $0.04–$0.20 per second of generated video on cloud APIs. For example, LTX-2.3 costs ~$0.04/s, Wan 2.6 ~$0.05/s, and Veo 3.1 ~$0.20/s. Closed-source models like Runway Gen-4.5 and Sora 2 use credit-based pricing. Self-hosting is free after the initial GPU investment but requires technical setup.

Question 4

Which AI video models support 4K resolution?

Accepted Answer

Several models now support 4K (3840×2160) output: Kling 3.0 generates native 4K, LTX-2.3 and LTX-2 support 4K at up to 50fps, Luma Ray 3 outputs 4K in HDR EXR format, and Adobe Firefly Video supports 4K as well. Most other models max out at 1080p or 720p. See our full resolution comparison for details.

Question 5

Which AI video generators support audio?

Accepted Answer

Audio-native AI video generation is a newer capability. Models that generate synchronized audio alongside video include Wan 2.6, Kling 3.0, Kling O1, Veo 3.1, Runway Gen-4.5, Hailuo 2.3, Pika 2.5, and Seedance 2.0. This means the model produces sound effects, dialogue, or ambient audio in a single generation pass — no separate audio step needed.

Question 6

Can I run AI video models locally on my own GPU?

Accepted Answer

Yes — all open-source models can be self-hosted. Wan 2.2 needs ~12GB VRAM, LTX-2.3 runs on ~12GB, and HunyuanVideo requires ~24GB. Most support ComfyUI for a visual workflow interface. If you don't have a powerful enough GPU, platforms like Floyo let you run these same models in the browser without any local hardware.

Question 7

How do I compare AI video models side by side?

Accepted Answer

Use the checkboxes on any model card above to select up to 3 models, then click Compare. You'll see a full side-by-side breakdown of specs (resolution, FPS, duration, audio support), pricing, strengths, trade-offs, and available workflows. You can also browse our spec guides for FPS and resolution to understand what each specification means.

Question 8

What is Floyo?

Accepted Answer

Floyo is a browser-based platform for running AI video and image workflows. It provides cloud-hosted ComfyUI — no local GPU, no installation, no setup. You can run models like Wan 2.2, LTX-2.3, Kling, and others directly in your browser. This comparison tool is built by Floyo to help you find the right model before you start generating.

AI Video Model Compare

LTX-2.3

Wan 2.6

Kling 3.0

Runway Gen-4.5

Veo 3.1

Kling O1

Wan 2.2

SkyReels V2

Sora 2

Seedance 2.0

Hailuo 2.3

Luma Ray 3

Adobe Firefly Video

Wan 2.1

LTX-2

Grok Imagine

HunyuanVideo 1.5

Mochi 1

Pika 2.5

Vidu 2.0

PixVerse 5.5

Open-Sora 2.0

CogVideoX-5B

Higgsfield Studio

Frequently Asked Questions