Veo 3.1 Fast
Google Veo 3.1 Fast optimized video generation. Produces fixed 8-second 720p, 1080p, or 4k clips from text, first/last frames, or up to three reference images.
Price
$0.14/ call
Endpoint
/videos
Delivery pattern
Async task lifecycle
Availability
Available now
API documentation
Build and copy the request
Choose the options this model accepts. The code below updates as you choose.
https://www.aisplice.store/v1/videosBearer API keyAsync taskOptionsOnly options published for this model are shown.
# Requires curl and jq
API_KEY="${API_KEY:-YOUR_API_KEY}"
# 1. Submit once
SUBMITTED=$(curl --fail-with-body -sS https://www.aisplice.store/v1/videos \
-H "Authorization: Bearer $API_KEY" \
-H "Content-Type: application/json" \
-H "Idempotency-Key: model-docs-$(date +%s)-$$" \\
-d '{
"model": "Veo 3.1 Fast",
"prompt": "A cinematic scene with careful composition",
"duration": 8,
"resolution": "720p",
"size": "16:9",
"nsfw_check": false
}')
TASK_ID=$(printf '%s' "$SUBMITTED" | jq -r '.task_id // .id // empty')
if [ -z "$TASK_ID" ]; then
printf '%s\n' "$SUBMITTED" >&2
exit 1
fi
echo "task_id=$TASK_ID"
# 2. Poll until terminal
while true; do
STATUS_JSON=$(curl --fail-with-body -sS \
"https://www.aisplice.store/v1/videos/$TASK_ID" \
-H "Authorization: Bearer $API_KEY")
STATUS=$(printf '%s' "$STATUS_JSON" | jq -r '.status // empty' | tr '[:upper:]' '[:lower:]')
echo "status=$STATUS"
case "$STATUS" in
completed|succeeded|success) break ;;
failed|failure|cancelled|canceled)
printf '%s\n' "$STATUS_JSON" | jq .
exit 1
;;
esac
sleep 5
done
# 3. Fetch the final result
curl --fail-with-body -sS \
"https://www.aisplice.store/v1/videos/$TASK_ID/content" \
-H "Authorization: Bearer $API_KEY" | jq .- 1Submit the task
- 2Poll the status
- 3Fetch the content
This model requires public media URLs. Upload a local file first, then put public_url into the model request. Avoid large Base64 bodies.
Read the upload guideParameter reference
modelExact model identifier for this request.
veo3.1-fastpromptInstruction describing the desired result.
durationVeo 3.1 Fast always produces an 8-second clip.
8resolutionRequested output resolution.
720p1080p4ksizeSent to the model as its aspect ratio.
16:99:16imagesPublic JPEG/JPG/PNG/WebP URLs, each at most 10 MB. Frame mode accepts one first frame or first/last frames; reference mode accepts up to three references.
Response lifecycle
Task status, terminal states, and result response examples.
Response lifecycle
Task status, terminal states, and result response examples.
{
"id": "task_xxx",
"task_id": "task_xxx",
"object": "video",
"model": "Veo 3.1 Fast",
"status": "queued"
}Waiting
queued · submitted · in_progress · processing
Success
completed · succeeded · success
Failure
failed · failure · cancelled · canceled
Errors and production
Retry rules, idempotency, and the minimum production checklist.
Errors and production
Retry rules, idempotency, and the minimum production checklist.
400 / 422Fix the request fields or unsupported option; do not retry unchanged.
401Check that the API key is present, active, and sent as a Bearer token.
402The account balance is insufficient.
409The Idempotency-Key is processing or was reused with another body.
429Back off according to Retry-After before retrying.
5xxRetry with exponential backoff and keep the original Idempotency-Key.
- Keep API keys on your server for public mobile and browser applications.
- Set a unique Idempotency-Key for every billable async operation.
- Persist task_id so polling can resume after a restart.
- Use a timeout for every HTTP request and surface the request ID in support reports.
- Read live model metadata instead of hard-coding prices and supported options.
Price and tiers
save 20% vs officialRequest price
$0.14/ call
$0.175
Tiered pricing
Base price $0.14
Tier pricing — the final price depends on the options you request. Unlisted tiers bill at the base price.
Choose one: use text-to-video pricing without reference media, or reference-media pricing when images, video, or audio are attached. These two resolution prices do not stack.
- 16:9×1$0.14
- 9:16×1$0.14
- 1080p×1$0.14
- 720p×1$0.14
- 4k×4.571428571429$0.64
- 1080p×1$0.14
- 720p×1$0.14
- 4k×4.571428571429$0.64
The price shown here is exactly what you are billed — failed calls are refunded automatically.
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