seedinteger
Random seed. A random seed is selected when omitted.
MiniMax H3 Max Turbo Text to Video
minimax/h3-max-turbo/text-to-videoMiniMax H3 Max Turbo, the fastest tier of the H3 family post-trained by fal, turns a text prompt into a 5-15 second video with native audio.
Try the model
Playground
Input
Text prompt for video generation
Additional Settings More
Customize your input with more control.
Output aspect ratio. Allowed values: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16.
The native generation resolution, or 1080P latent refinement from a native 768P source. Allowed values: 480P, 768P, 1080P.
515
Video duration in seconds (5-15). Range: 5 to 15.
Random seed. A random seed is selected when omitted.
Optional URL of an audio clip at least 2 seconds long (maximum 15 MB) to pin to the generated soundtrack. Longer clips are trimmed to the requested video duration, keeping the beginning. The original audio replaces the output soundtrack, padded with silence if shorter than the video, without changing playback speed. Exceptionally high sample rates may be resampled to 96 kHz. Accepts an HTTP(S) URL or a base64 data URI.
How much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "duration": 5, "prompt": "a paper boat drifting on a pond", "resolution": "480P" }
MiniMax H3 Max Turbo Text to Video
MiniMax H3 Max Turbo, the fastest H3 tier, turns a prompt into a 5–15 second video with native audio.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Up to 50,000 characters. |
aspect_ratio | 21:9 / 16:9 / 4:3 / 1:1 / 3:4 / 9:16 | 16:9 | Output frame shape. |
resolution | 480P / 768P / 1080P | 768P | Sets the per-second rate. |
duration | integer 5–15 | 5 | Output length in seconds. |
seed | integer | random | Fix it to compare prompt changes. |
target_audio_url | audio URL | — | Optional audio the clip should follow. |
prompt_expansion_mode | string | balanced | balanced rewrites the prompt lightly; quality expands it more for richer detail. |
Billing
You pay for new seconds: $0.025 at 480P, $0.04 at 768P, $0.08 at 1080P.
| Output | 480P | 768P | 1080P |
|---|---|---|---|
| 5s (default) | $0.125 | $0.20 | $0.40 |
| 10s | $0.25 | $0.40 | $0.80 |
| 15s | $0.375 | $0.60 | $1.20 |
Failed runs are not charged.
Prompting
- Describe subject, action, camera, and sound in order.
- Quote dialogue and name the speaker.
Also on SandBase
Other H3 Max Turbo endpoints: minimax/h3-max-turbo/image-to-video, minimax/h3-max-turbo/video-extend, minimax/h3-max/text-to-video (H3 Max).
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "minimax/h3-max-turbo/text-to-video",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"duration": 5,
"resolution": "768P",
"aspect_ratio": "16:9",
"prompt_expansion_mode": "disabled"
}
SANDBASE_JSON
)
run_id=$(printf '%s' "$result" | jq -r .id)
for attempt in $(seq 1 120); do
status=$(printf '%s' "$result" | jq -r .status)
case "$status" in completed|failed|timeout) break ;; esac
sleep 2
result=$(curl --fail-with-body --silent \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
"https://api.sandbase.ai/v1/run/$run_id")
done
status=$(printf '%s' "$result" | jq -r .status)
[ "$status" = completed ] || { echo "Generation ended: $status" >&2; exit 1; }
printf '%s\n' "$result"2. Authentication
Create a SandBase API key and set it in your server environment. All requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep the key on your server. Do not expose it in browser code or commit it to a repository.
3. Queue
Submit a request
POST to /v1/run with this model ID and its inputs. The request example above includes submission and polling.
Fetch request status and result
Use the returned run ID to poll until the status is completed, failed or timeout. Read output only after completed.
curl "https://api.sandbase.ai/v1/run/$RUN_ID" \
-H "Authorization: Bearer $SANDBASE_API_KEY"4. Files
Hosted files
Pass a publicly accessible file URL in the model’s image, video or audio field. Supported formats and limits are shown beside each Playground input.
Uploading images
Use the upload or replace control on supported image fields in the Playground. Video URL fields accept a hosted driving video; they do not imply video-upload support.
5. Schema
Input
promptstringrequired
Text prompt for video generation
durationinteger
Video duration in seconds (5-15).
Default: 5
Minimum: 5
Maximum: 15
resolutionstring
The native generation resolution, or 1080P latent refinement from a native 768P source.
Default: "768P"
Possible values: "480P", "768P", "1080P"
aspect_ratiostring
Output aspect ratio.
Default: "16:9"
Possible values: "21:9", "16:9", "4:3", "1:1", "3:4", "9:16"
target_audio_urlstring
Optional URL of an audio clip at least 2 seconds long (maximum 15 MB) to pin to the generated soundtrack. Longer clips are trimmed to the requested video duration, keeping the beginning. The original audio replaces the output soundtrack, padded with silence if shorter than the video, without changing playback speed. Exceptionally high sample rates may be resampled to 96 kHz. Accepts an HTTP(S) URL or a base64 data URI.
prompt_expansion_modestring
How much effort to spend rewriting the prompt before generation. 'disabled' skips prompt expansion. 'balanced' returns in about a second. 'quality' spends up to ~30s on a richer prompt.
Default: "balanced"
{
"model": "minimax/h3-max-turbo/text-to-video",
"prompt": "A white kitten chases a butterfly across a sunlit garden. Gentle camera tracking, natural movement, soft afternoon light filtering through the leaves.",
"duration": 5,
"resolution": "768P",
"aspect_ratio": "16:9",
"prompt_expansion_mode": "disabled"
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"poster": "https://static.sandbase.ai/examples/posters/b5365784cae4d0e44149.jpg",
"source": "Self organization completed prediction",
"source_url": "https://www.sandbase.ai",
"url": "https://static.sandbase.ai/examples/ccd2c467-ec6a-4a3b-af35-ed8dad739f9a/output/82055aaa-bdc7-457e-991e-b85bf25ae4ce.mp4"
}
]