# Luma Ray 3.2 vs Kling 4 — Silent B-roll vs 30s Audio > Luma Ray 3.2 vs Kling 4.0: silent 5–10s shots at 540p–1080p vs 3–30s clips with audio and 10 references. Specs from the Video Lab catalog. Try both online. Canonical page: https://clipstudio.ai/ai-video-models/luma-ray-3-2-vs-kling-4 ## Intent Luma Ray 3.2 makes silent 5 or 10 second shots at 540p–1080p (5 seconds from an image). Kling 4.0 runs 3–30 seconds at 720p or 1080p with audio and up to 10 references. ## Verdict Luma Ray 3.2 lists 5 or 10 seconds from text, or 5 seconds from a start image or first and last frames, at 540p, 720p, or 1080p in 21:9, 16:9, 4:3, 1:1, 3:4, or 9:16. Its clips are silent and it has no reference mode. Kling 4.0 lists 3–30 seconds at 720p or 1080p in 21:9, 16:9, 1:1, or 9:16, with audio on every clip, first/last frames, and up to 10 references. Choose Luma Ray 3.2 for silent b-roll you will score later, or 540p drafts; choose Kling 4.0 for long shots, sound, or a reference pack. Clip Studio does not publish a quality ranking between them. ## Spec table | Spec | Luma Ray 3.2 | Kling 4.0 | | --- | --- | --- | | Duration | 5 or 10 seconds | 3–30 seconds | | Resolution | 540p, 720p, 1080p | 720p, 1080p | | Aspect ratios | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 | 21:9, 16:9, 1:1, 9:16 | | Audio | No generated audio | Native audio | | Modes | Text prompt, Animate image, First → last | Text prompt, Animate image, First → last, References | | References | Not available | Up to 10 | | Advanced controls | None listed | None listed | ## FAQs ### Does Luma Ray 3.2 generate audio? No. Ray 3.2 clips are silent. Kling 4.0 generates audio with every clip. ### How long can each clip be? Luma Ray 3.2 text shots run 5 or 10 seconds, and image shots run 5 seconds. Kling 4.0 runs 3–30 seconds. ### Which one takes reference images? Kling 4.0, with up to 10. Luma Ray 3.2 works from text, a start image, or first and last frames. ### Which resolutions does each offer? Luma Ray 3.2 lists 540p, 720p, and 1080p. Kling 4.0 lists 720p and 1080p. ### How are Luma Ray 3.2 and Kling 4.0 priced? Neither is free. Both are included in every Clip Studio plan and use the plan’s monthly generation allowance, and each setup is quoted before you generate. At each model’s default setup (Luma Ray 3.2: 5 seconds at 720p; Kling 4.0: 5 seconds at 1080p with audio), Clip Pro’s monthly allowance covers about 6 Luma Ray 3.2 clips or about 5 Kling 4.0 clips. Plan details live on the pricing page. ## Related - [Luma Ray 3.2](https://clipstudio.ai/ai-video-models/luma-ray-3-2.md) - [Kling 4.0](https://clipstudio.ai/ai-video-models/kling-4.md) - [Video Lab](https://clipstudio.ai/video-lab.md) - [All models](https://clipstudio.ai/ai-video-models.md) - [Kling 4.0 vs Kling O3](https://clipstudio.ai/ai-video-models/kling-4-vs-kling-o3.md) - [Kling 4.0 vs Veo 3.1](https://clipstudio.ai/ai-video-models/kling-4-vs-veo-3-1.md) - [FLUX 3 Max vs Veo 3.1](https://clipstudio.ai/ai-video-models/flux-3-max-vs-veo-3-1.md) - [FLUX 3 vs PixVerse V6](https://clipstudio.ai/ai-video-models/flux-3-vs-pixverse-v6.md)