VIDEO MODEL / CONTRACT PREVIEW

Veo 3.1 Fast HD API.

Fixed-length clips with native audio. A compact starting point for prototyping text-to-video workflows. The initial preset produces 8-second output at 720p.

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What this preset accepts.

The HD variant fixes output at 720p and 8 seconds. Describe dialogue and ambience in the prompt; there is no separate audio toggle.

Model ID: veo-3-1-fast-hd
Duration: 8 seconds (fixed)
Output preset: 720p
Audio: Native audio
Early-bird price: Coming soon
Aspect ratio: 16:9 or 9:16; defaults to 16:9
Prompt: 1–2,500 characters

A request you can inspect.

These examples show the proposed contract. Set your own base URL after access opens; they do not run on this page.

# Proposed API · early access only
curl "$FRAMECALL_BASE_URL/v1/videos" \
  -H "Authorization: Bearer $FRAMECALL_API_KEY" \
  -H "Idempotency-Key: demo-request-001" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "veo-3-1-fast-hd",
  "prompt": "A ceramic rover crosses a red desert, soft wind and mechanical footsteps.",
  "aspect_ratio": "16:9"
}'

Example only. The gateway currently returns 503.

From request to result.

Send a unique Idempotency-Key with each new generation. The API responds with a task ID; query GET /v1/videos/:id until the status is completed or failed. Save the returned video promptly.

Read authentication and error codes → · Compare sourced provider prices →

Questions, answered.

Can I use this model now?

No. This is an early-access contract preview. Join the waitlist to request access; no generation or payment is available now.

What does this preset generate?

Veo 3.1 Fast HD is configured for 8-second output at 720p, with native audio. Only text prompts and 16:9 or 9:16 aspect ratios are accepted initially.

How much will this model cost?

Coming soon. A price is published only after the preset cost and a lower-than-kie.ai quote are both verified. Early-bird rates apply after access opens.

Can I send arbitrary provider parameters?

No. The initial contract accepts only model, prompt and aspect_ratio. Other fields are rejected rather than silently forwarded.