seedinteger
Random seed for reproducibility.
Minimum: 0
Maximum: 2147483647
InfiniteTalk Text to Video
meigen/infinitetalk/text-to-videoInfiniteTalk speaks the given text with a chosen voice and animates the portrait into a talking video.
Try the model
Playground
Input
Text the person speaks.
PNG, JPEG, WebP, or GIF · 20 MiB maximum
Input image URL (face / character).
This field is required.
Voice used to speak the text. Allowed values: Aria, Roger, Sarah, Laura, Charlie, George, Callum, River, Liam, Charlotte, Alice, Matilda, Will, Jessica, Eric, Chris, Brian, Daniel, Lily, Bill.
Text prompt guiding the generation.
Additional Settings More
Customize your input with more control.
Random seed for reproducibility. Range: 0 to 2147483647.
41721
Maximum frames to generate (41–721, 25 fps); output also stops at the end of the audio. Range: 41 to 721.
Output resolution (720p costs 2x). Allowed values: 480p, 720p.
ResultExample
What would you like to do next?
Examples
Select an example to load its inputs and result into the playground.
- Open result ↗
Input
{ "image": "https://static.sandbase.ai/examples/dacdca53-ccb5-4504-9a89-85b592384fbf/input/b243da19-087f-47f1-9f0c-926f1c59fc20.png", "num_frames": 41, "prompt": "A woman with colorful hair talking on a podcast.", "resolution": "480p", "text": "Hello everyone, welcome to our product demo today.", "voice": "Aria" }
InfiniteTalk Text to Video
InfiniteTalk text-to-video speaks your text with a chosen voice and animates the portrait to match.
Fields
| Field | Type | Default | Notes |
|---|---|---|---|
prompt | string, required | — | Scene and gesture direction. |
text | string, required | — | Text to speak. |
image | image URL, required | — | Portrait. JPEG, PNG, or WebP URL. |
voice | Aria / Roger / Sarah / Laura / Charlie / George / Callum / River / Liam / Charlotte / Alice / Matilda / Will / Jessica / Eric / Chris / Brian / Daniel / Lily / Bill, required | — | Voice for the text. |
num_frames | integer 41–721 | 145 | Frames at 25fps when the length is not set by audio. |
resolution | 480p / 720p | 720p | Sets the per-second rate. |
seed | integer 0–2147483647 | random | Fix it to compare prompt changes. |
Billing
Per output second: $0.20 at 480p and $0.40 at 720p. Length follows the audio; without it, num_frames at 25fps (default 145 frames, 5.8 seconds).
| Output | 480p | 720p |
|---|---|---|
| 6s | $1.20 | $2.40 |
| 30s | $6.00 | $12.00 |
| 60s | $12.00 | $24.00 |
Failed runs are not charged.
Prompting
- Use a front-facing portrait with the mouth visible.
Also on SandBase
Other InfiniteTalk endpoints: meigen/infinitetalk/image-to-video, meigen/infinitetalk/video-to-video.
Start building
Send your first request
Submit this model through the SandBase Unified Run API.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/run" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"model": "meigen/infinitetalk/text-to-video",
"text": "Spend more time with people who make you feel alive, and less with things that drain your soul.",
"image": "https://v3.fal.media/files/panda/HuM21CXMf0q7OO2zbvwhV_c4533aada79a495b90e50e32dc9b83a8.png",
"voice": "Bill",
"prompt": "An elderly man with a white beard and headphones records audio with a microphone. He appears engaged and expressive, suggesting a podcast or voiceover.",
"num_frames": 145,
"resolution": "720p"
}
SANDBASE_JSON
)
run_id=$(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
textstringrequired
Text the person speaks.
imagestringrequired
Input image URL (face / character).
voicestringrequired
Voice used to speak the text.
Possible values: "Aria", "Roger", "Sarah", "Laura", "Charlie", "George", "Callum", "River", "Liam", "Charlotte", "Alice", "Matilda", "Will", "Jessica", "Eric", "Chris", "Brian", "Daniel", "Lily", "Bill"
promptstringrequired
Text prompt guiding the generation.
num_framesinteger
Maximum frames to generate (41–721, 25 fps); output also stops at the end of the audio.
Default: 145
Minimum: 41
Maximum: 721
resolutionstring
Output resolution (720p costs 2x).
Default: "720p"
Possible values: "480p", "720p"
{
"model": "meigen/infinitetalk/text-to-video",
"text": "Spend more time with people who make you feel alive, and less with things that drain your soul.",
"image": "https://v3.fal.media/files/panda/HuM21CXMf0q7OO2zbvwhV_c4533aada79a495b90e50e32dc9b83a8.png",
"voice": "Bill",
"prompt": "An elderly man with a white beard and headphones records audio with a microphone. He appears engaged and expressive, suggesting a podcast or voiceover.",
"num_frames": 145,
"resolution": "720p"
}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/663f023ac6a09b054e91.jpg",
"source": "Self organization completed prediction",
"source_url": "https://www.sandbase.ai",
"url": "https://static.sandbase.ai/examples/dacdca53-ccb5-4504-9a89-85b592384fbf/output/753324a6-572b-4a6d-9b59-879aaa01152f.mp4"
}
]