promptstringrequired
Describe the scene, action, camera and sound.
HeyGen Video Text to Video
heygen/heygen-video/text-to-videoHeyGen Video Text to Video turns a text prompt into a 5-15 second video at up to 2K resolution.
Try the model
Playground
Input
Describe the scene, action, camera and sound.
Additional Settings More
Customize your input with more control.
Output frame shape. Allowed values: 21:9, 16:9, 4:3, 1:1, 3:4, 9:16.
Output resolution. 1080p and 2k cost more. Allowed values: 480p, 768p, 1080p, 2k.
515
Output length in seconds (5-15). Range: 5 to 15.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "aspect_ratio": "16:9", "prompt": "A red paper boat drifting on a calm misty lake at sunrise, gentle camera push-in, soft golden light, birds calling in the distance." } - Open result ↗
Input
{ "aspect_ratio": "16:9", "prompt": "A street food vendor in a neon-lit night market flips noodles in a flaming wok, handheld camera, sizzling sounds and crowd chatter." }
HeyGen Video Text to Video
HeyGen Video turns a text prompt into a 5–15 second video at up to 2K resolution.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Scene, action, camera and sound. |
aspect_ratio | 21:9 / 16:9 / 4:3 / 1:1 / 3:4 / 9:16 | 16:9 | Output frame shape. |
resolution | 480p / 768p / 1080p / 2k | 768p | Output resolution; 1080p and 2k cost more. |
duration | 5–15 | 5 | Output length in seconds. |
Billing
Billed per output second: $0.02 at 480p, $0.036 at 768p, $0.06 at 1080p and 2k.
| Output | Price |
|---|---|
| 5s, 768p (default) | $0.18 |
| 5s, 480p | $0.10 |
| 10s, 1080p | $0.60 |
| 15s, 2k | $0.90 |
| Failed runs are not charged. |
Prompting
- Describe subject, action, camera move and light in order.
Limits
- Clips are 5–15 seconds.
Also on SandBase
Other HeyGen Video endpoints: heygen/heygen-video/image-to-video, heygen/heygen-video/reference-to-video.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "heygen/heygen-video/text-to-video",
"duration": 5,
"resolution": "768p",
"aspect_ratio": "16:9"
}
SANDBASE_JSON
)
run_id=$(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
durationinteger
Output length in seconds (5-15).
Default: 5
Minimum: 5
Maximum: 15
resolutionstring
Output resolution. 1080p and 2k cost more.
Default: "768p"
Possible values: "480p", "768p", "1080p", "2k"
aspect_ratiostring
Output frame shape.
Default: "16:9"
Possible values: "21:9", "16:9", "4:3", "1:1", "3:4", "9:16"
{
"model": "heygen/heygen-video/text-to-video",
"duration": 5,
"resolution": "768p",
"aspect_ratio": "16:9"
}Output
A completed run exposes its result in output. The following is the model’s saved example, not a new generation.
[
{
"url": "https://static.sandbase.ai/examples/4a216857-494e-49b6-9b49-c01514aba4e0/output/0d7b4a3b-a270-4519-8c48-e8cd3c7bdf4d.mp4"
}
]