gemini-omni-flash/text-to-video
Generate cinematic videos with synchronized audio from a text prompt.
MiniMax's MiniMax H3 Fast First Last Frame builds a 5-15 second clip with native audio between a start image and an end image, at up to 2K. MiniMax H3 Fast returns sooner and costs less, but it follows detailed prompt instructions less strictly than the standard MiniMax H3 page. For developers, MiniMax H3 Fast on RunComfy can be used both in the browser and via an HTTP API, so you don't need to host or scale the model yourself.
Ideal for: Draft storyboards | Social clips | Fast iteration
MiniMax H3 Fast bills each resolution below at its own per-second rate. Generation is faster than standard MiniMax H3, and detailed prompt instructions are followed less strictly.
| Parameter | Required | Type | Default | Range / Options | Description |
|---|---|---|---|---|---|
| image* | Yes (*) | Image | None | JPEG, PNG, WebP, and similar; URL up to 30 MB | Opening frame of the shot. |
| last_image* | Yes (*) | Image | None | Same limits as image | Frame the clip should land on. |
| prompt* | Yes (*) | String | Example prompt | 1 or more characters | Describe the motion between the two frames, plus camera and sound. |
| aspect_ratio | No | String | 16:9 | 21:9, 16:9, 4:3, 1:1, 3:4, 9:16 | Output frame shape. |
| resolution | No | String | 768p | 480p, 768p, 1080p, 2k | Each size has its own per-second rate. |
| duration | No | Integer | 5 | 5-15 seconds | Longer clips give the transition more time, and cost more. |
MiniMax H3 Fast bills generated video by resolution: $0.033 per second at 480p, $0.055 per second at 768p, $0.066 per second at 1080p, and $0.077 per second at 2K. Reference images and a reference video do not add a separate charge on the reference page.
| Resolution | Per second | 5 seconds | 10 seconds | 15 seconds |
|---|---|---|---|---|
| 480p | $0.033 | $0.165 | $0.330 | $0.495 |
| 768p | $0.055 | $0.275 | $0.550 | $0.825 |
| 1080p | $0.066 | $0.330 | $0.660 | $0.990 |
| 2K | $0.077 | $0.385 | $0.770 | $1.155 |
A batch multiplies that total by the number of outputs.
Generate cinematic videos with synchronized audio from a text prompt.
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MiniMax H3 Fast builds a 5-15 second video with native audio between an opening image and a closing image. It is useful for transitions, product reveals, and short story beats when both ends of the shot are already designed.
MiniMax H3 Fast is faster than standard MiniMax H3 and follows detailed instructions less strictly. Describe one clear change between the two frames. Extra style notes and on-screen text are easier for MiniMax H3 Fast to miss.
MiniMax H3 Fast requires a prompt, an opening image, and a closing image. Images can be JPEG, PNG, or WebP, and a URL image may be up to 30 MB. Duration is 5-15 seconds at 480p, 768p, 1080p, or 2K.
MiniMax H3 Fast uses the two images as the start and end of the motion, but it does not guarantee a pixel-locked match. Leave more duration when the two frames differ a lot.
Yes. MiniMax H3 Fast writes audio with the picture. Put the intended sound in the prompt, and treat the result as a faster, less literal pass than standard MiniMax H3.
Use MiniMax H3 Fast for a quicker, cheaper bridge between two frames. Use standard MiniMax H3 when the path between those frames has to follow a specific prompt closely.
MiniMax H3 Fast costs $0.033 per second at 480p, $0.055 at 768p, $0.066 at 1080p, and $0.077 at 2K. A 5-second clip is $0.165, $0.275, $0.330, or $0.385 at those sizes. A 10-second clip is $0.330, $0.550, $0.660, or $0.770. A 15-second clip is $0.495, $0.825, $0.990, or $1.155. 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.
