MiniMax H3: The Clip Speaks Its Lines, in Sync, at 2K — for Less

Write the line in quotes and the character says it with matching mouth movement, stereo room tone, and effects that land on the action — no dubbing pass, no audio tool. Hailuo 3.0 cuts between shots inside a single 4–15 second take and renders 2K cheaper per second than most 1080p models in this workspace, from a prompt or a start and end frame.

Hailuo 3.0: 2K clips with native stereo sound and lip-synced speech. 4–15s.

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MiniMax H3 Is the Model to Reach for When the Clip Has to Speak

Most video models add sound as an afterthought. MiniMax H3 — Hailuo 3.0 — was built as one model that reads text, images, video, and audio together and writes video with native stereo sound in the same pass: dialogue that matches the mouth, ambience that matches the room, effects that land on the action. It renders 4–15 second clips at 768p or 2K, 24 fps, in six aspect ratios, and it can plan more than one shot inside a single generation, so a line of dialogue and the reaction to it can sit in the same clip.

Demo Video

What MiniMax H3 Does Differently

Stereo sound and lip-synced dialogue in one pass

Every H3 clip comes back with native stereo audio: spoken lines timed to the mouth, ambience that fits the space, and effects that follow the action. Put the dialogue in quotes in your prompt and the character says it.

2K output at the lowest cost in the workspace

H3 renders at 768p for direction checks and 2K for delivery, and its 2K rate is cheaper per second than the 1080p rate of most other models here. Sharp vertical and landscape clips without paying flagship prices.

More than one shot per generation

The model can cut between angles inside a single 4–15 second clip — a wide, a close-up, a reaction — while keeping the subject and the sound continuous, so short multi-shot pieces do not need to be assembled by hand.

Start frame, end frame, or both

Image to video accepts a first frame, a last frame, or the pair, and takes its aspect ratio from the image. Text to video gives you six ratios from 21:9 to 9:16 to choose from directly.

Speech in the language you write it

H3's built-in text-to-speech covers major languages natively and many more by derivation, so a localized version of a spot is a prompt edit rather than a dubbing pass.

How to Get a MiniMax H3 Clip in Three Steps

1

Write the shot and the sound

Describe the subject, camera, and mood as usual, then add what we should hear: a quoted line of dialogue, the ambience, a key sound effect. H3 treats those as part of the scene, not as an afterthought.

2

Pick the frame, length, and resolution

For text to video choose one of six aspect ratios; for image to video upload a first frame and optionally a last frame and the ratio follows the image. Then set 4–15 seconds and 768p or 2K. The credit cost updates before you submit.

3

Generate and review with the sound on

The clip plays back with its stereo track in the browser. Adjust the line or the shot description and re-run; your image and settings stay in place.

When to Use MiniMax H3 — and When Another Model Fits Better

Use H3 when the audio is the point: a character who speaks a line, a product spot with a voice-over baked in, a scene where footsteps, doors, and weather need to line up with the picture. It is also the cheapest 2K in the workspace, so it doubles as a good default for crisp landscape and vertical clips. If the brief runs past 15 seconds or needs the same face across several cuts, use Seedance 2.5; if you need 4K, use Seedance 2.0 or LTX 2.5. The prompt and image carry over when you switch.

FAQ

What is MiniMax H3?+
MiniMax H3, also called Hailuo 3.0, is MiniMax's omni-modal video model: it takes text, images, video, and audio as one context and returns video with native stereo sound. On this site it powers 4–15 second text-to-video and image-to-video clips at 768p or 2K.
Does MiniMax H3 generate speech and lip-sync?+
Yes. Put the dialogue in quotation marks in your prompt and describe who says it. The audio is generated in the same pass as the video, so mouth movement and timing match. Ambient sound and effects are generated alongside.
What resolutions and aspect ratios does H3 support?+
768p and 2K at 24 fps. Text to video offers 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16; image to video follows the aspect ratio of the uploaded frame.
Can I set both a start and an end frame?+
Yes. Upload a first frame, a last frame, or both. The model animates between them and generates matching sound. Images can be JPG, PNG, WEBP, or HEIC, up to 30 MB.
How is MiniMax H3 billed?+
Per second of output, by resolution — 768p is cheaper than 2K. Start and end frames are included at no extra charge. The exact credit cost appears on the Generate button before you commit.
When should I use a different model instead?+
For clips longer than 15 seconds or a subject that has to stay consistent across many cuts, use Seedance 2.5. For 4K output use Seedance 2.0 or LTX 2.5. For sound-driven animation from an existing audio track, use LTX 2.5 audio to video. All of them share the same workspace.

Give Your Next Clip a Voice With MiniMax H3

Write the line, describe the shot, pick 2K, and get a clip whose sound was made with the picture — not layered on afterwards.

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