API-first AI long-video

Turn one prompt into a complete video.

Long Video generates long-form video end to end — storyboard, consistent characters, seamless shots, narration, and final cut. One REST call, delivered by webhook.

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Up to 180s: long-form output
Parallel: shot generation
Webhook: or polling delivery
Swappable: video providers

Render preview · seamless mode6 shots · 1080p

Shot 1

Shot 2

Shot 3

Shot 4

Shot 5

Shot 6

The pipeline

A reliable path from prompt to finished cut

Every render runs through the same durable, resumable workflow — so long jobs finish even when individual steps need a retry.

1Storyboard
2Moderate
3Anchor
4Generate
5Audio
6Compose
7Deliver

Why Long Video

Everything a long render needs, handled

Single-shot models stop at a few seconds. We stitch many shots into one coherent film — keeping characters, motion, and audio consistent the whole way through.

Claude storyboards

Your prompt becomes a shot-by-shot script — scenes, characters, and camera moves — generated and safety-checked automatically.

Character consistency

Consistent mode locks faces and outfits to reference images, so characters stay on-model across every shot.

Seamless motion

Seamless mode chains tail frames between shots for continuous camera movement and clean, cut-free transitions.

REST + webhooks

Start a render with a single POST and get notified the instant it finishes. Subscribe to webhooks or poll — your call.

Credit-based billing

Transparent, usage-based credits with scoped API keys and quotas. No seats, no surprises.

Swappable providers

Video, image, and audio providers are pluggable, and the durable workflow resumes safely if any step fails.

How it works

Four steps, fully automated

Describe it

Send a prompt — plus optional reference images and a mode — to a single REST endpoint.

We storyboard & anchor

Claude scripts the shots while reference frames lock each character’s identity.

Generate & compose

Shots render in parallel, then narration, music, and FFmpeg stitch the final cut.

Deliver

Download the finished video or receive it the moment it’s ready via webhook.

Built for developers

One endpoint. The whole production.

Authenticate with an API key, post a prompt, and let the workflow do the rest. Track progress by polling, or subscribe to a webhook and get the finished file pushed to you.

View API reference Try it live

create-video.sh

curl -X POST https://api.yourdomain.com/v1/videos \
  -H "Authorization: Bearer $LV_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "prompt": "A lighthouse keeper through the four seasons",
    "mode": "seamless",
    "duration": 120
  }'

# → { "id": "vid_8f2c", "status": "queued" }
# poll GET /v1/videos/:id or subscribe to a webhook

Use cases

Whatever needs to move

Ads & promos

On-brand spots from a brief.

Explainers

Turn docs into watchable lessons.

Social

Shorts that scale into series.

Product demos

Show features, not slideshows.

Trailers

Cinematic teasers on demand.

Storytelling

Long narratives, one prompt.

Ready to ship video at scale?

Start in the playground in minutes, then drop the API into your product when you’re ready.

Open the playground Read the docs