veo-3-1/fast/extend-video
Streamline video refinements with seamless scene continuity for creators.
MiniMax H3 Fast bills every resolution below at the same rate. Generation is faster than standard MiniMax H3, and detailed prompt instructions are followed less strictly.
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
| prompt* | Yes (*) | String | Example prompt | 1 or more characters | Describe the subject, one action, camera, look, and the sound you want. |
| aspect_ratio | No | String | 16:9 | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 | Match the destination frame. |
| resolution | No | String | 768p | 480p, 768p, 1080p, 2k | All four sizes bill at the same per-second rate. |
| duration | No | Integer | 5 | 5-15 seconds | Use a short duration while you are still changing the prompt. |
MiniMax H3 Fast is $0.02 per second of generated video at 480p, 768p, 1080p, and 2K. Reference images and a reference video do not add a separate charge on the reference page.
| Duration | Price |
|---|---|
| 5 seconds | $0.10 |
| 10 seconds | $0.20 |
| 15 seconds | $0.30 |
A batch multiplies that total by the number of outputs.
Streamline video refinements with seamless scene continuity for creators.
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MiniMax H3 Fast turns a written prompt into a 5-15 second video with native audio. It fits draft storyboards, social clips, and quick iteration when you want a result sooner rather than a tightly controlled shot.
MiniMax H3 Fast generates faster than standard MiniMax H3, and it follows detailed instructions less strictly. Style words, exact camera moves, and on-screen text are the first things to slip, so keep each prompt to one subject and one action.
MiniMax H3 Fast accepts 5 to 15 seconds and 480p, 768p, 1080p, or 2K. Aspect ratios are 21:9, 16:9, 4:3, 1:1, 3:4, and 9:16. Every size uses the same per-second price.
Yes. MiniMax H3 Fast writes audio with the picture. Name the voices, effects, or ambience in the prompt if they matter, and expect the sound direction to be looser than on the standard MiniMax H3 page.
Use MiniMax H3 Fast for speed and a lower rate. Use standard MiniMax H3 when the prompt must hold a specific style, shot structure, or written text, because MiniMax H3 Fast is weaker at following those instructions.
Keep the MiniMax H3 Fast prompt short and concrete: subject, one action, camera, look, and sound. A long list of competing directions is more likely to be dropped.
MiniMax H3 Fast costs $0.02 per second of generated video at 480p, 768p, 1080p, and 2K. A 5-second clip is $0.10, a 10-second clip is $0.20, and a 15-second clip is $0.30. Reference images and a reference video do not add a separate charge. Generations spend USD credits, and new accounts usually receive a trial balance.
Yes. Build the shot in the Playground Web UI, then send the same MiniMax H3 Fast model and parameters over the RunComfy HTTP API. The page does not promise a fixed queue time or unlimited concurrency.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.
