Grok Imagine Video 1.5 Reference to Video
Generate videos from up to 7 reference images with xAI's Grok Imagine Video 1.5. Feed it the people, objects, and styles you want on screen, cite them in the prompt as @Image1, @Image2, and get a clip of up to 15 seconds with synchronized audio — consistent characters, no fine-tuning.
85% less than the priciest provider (4 compared). Same model, same output.
1-7 reference images contributing people, objects, or styles. Cite them in the prompt as @Image1, @Image2 and so on.
Resolution
Output resolution. 480p is the budget rung; 1080p is the premium rung.
Aspect Ratio
Aspect ratio of the generated video. 'auto' lets the model choose from your prompt.
Duration
Length of the generated video in seconds (1-15). Billed per second.
85% less than the priciest provider (4 compared). Same model, same output.
Your result renders here.
Use Grok Imagine Video 1.5 Reference to Video via the API
Generate with Grok Imagine Video 1.5 Reference to Video from your own code. Async by design: submit a generation, get a run id back instantly, poll until it completes. Billed in credits at the best available provider price — from $0.012 per second.
1 — Start a generation
curl -X POST https://app.scenetra.com/api/v1/generate/grok-imagine-video-1.5-ref2v \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{"prompt":"@Image1 walks through a sunlit market holding @Image2, handheld follow shot, crowd murmur and distant music","reference_image_urls":["https://example.com/person.jpg","https://example.com/product.jpg"],"resolution":"480p","duration":"6"}'Response (202)
{
"runId": "run_abc123",
"status": "PENDING",
"model": "grok-imagine-video-1.5-ref2v",
"estimatedCredits": 72,
"statusUrl": "/api/v1/runs/run_abc123"
}2 — Poll until COMPLETED (every 2-5 seconds)
curl https://app.scenetra.com/api/v1/runs/run_abc123 \
-H "Authorization: Bearer YOUR_API_KEY"Response
{
"runId": "run_abc123",
"status": "COMPLETED",
"progress": { "completed": 1, "total": 1 },
"outputs": [
{ "type": "video", "url": "https://images.scenetra.com/..." }
],
"error": null,
"estimatedCredits": 72
}Request fields
| Field | Type | Description | Default |
|---|---|---|---|
| prompt* | string | Describe the video: subject, motion, camera work, and audio direction. Native synchronized audio is generated in the same pass. | — |
| reference_image_urls* | string[] (https URLs) | 1-7 reference images contributing people, objects, or styles. Cite them in the prompt as @Image1, @Image2 and so on. | — |
| resolution | string | Output resolution. 480p is the budget rung; 1080p is the premium rung.480p · 720p | 480p |
| aspect_ratio | string | Aspect ratio of the generated video. 'auto' lets the model choose from your prompt.auto · 16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16 | auto |
| duration | string | Length of the generated video in seconds (1-15). Billed per second.1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 | 6 |
| callbackUrl | string (https URL) | Optional. When the run finishes (completed or failed), we POST the final run status to this URL — same shape as the poll response, plus model, params, and chargedCredits. Best-effort; polling remains the source of truth. | |
Unknown fields are rejected with a helpful 400. Media fields take https URLs. There is no provider parameter — every run is routed to the cheapest capable provider automatically.
Good to know
Billing
Runs bill your account credits at provider cost with 0% markup. The submit response includes the credit estimate; failed generations are refunded automatically. Add ?dryRun=1 to get the estimate without running anything.
Errors
Errors are always { "error": { "code", "message" } } with stable codes: unauthorized, model_not_available, invalid_parameter, insufficient_credits, rate_limited. A failed run is not an HTTP error — poll responses report status: "FAILED" with the reason.
What makes Grok Imagine Video 1.5 Reference to Video different
Native audio, included in the price
Grok Imagine Video 1.5 generates synchronized audio with every clip in the same pass as the picture, and it's covered by the per-second rate rather than billed as an add-on. You can even direct the soundtrack from the prompt — name the ambience, effects, or mood you want and the model scores the scene to match what happens on screen.
Free-form durations from 1 to 15 seconds
Pick any length from 1 to 15 seconds instead of choosing between a couple of fixed presets. One- and two-second clips make cheap motion tests, six seconds is the sweet-spot default, and 15 seconds is enough for a full beat of action with sound — at 480p, a 15-second draft still costs well under $0.20.
Three resolutions, one cheap draft rung
480p runs at $0.012 per second, 720p at $0.0225, and 1080p at $0.04 — so a 5-second draft costs $0.06 and a 5-second full-HD final $0.20. A practical Scenetra workflow: iterate your prompt at 480p until motion and audio land, then flip the resolution select to 1080p for the final render. Same node, same wiring, and every generation is billed at provider cost with 0% markup.
Eight aspect ratios, or let the model decide
Grok Imagine Video 1.5 outputs 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, and 9:16 — covering widescreen, square, and vertical social formats — or you can leave the ratio on Auto and let the model pick a frame that suits your prompt. That makes it easy to render the same idea as both a landscape hero clip and a 9:16 story cut.
Parameters
| Parameter | Type | Description | Default |
|---|---|---|---|
| Prompt* | text | Describe the video: subject, motion, camera work, and audio direction. Native synchronized audio is generated in the same pass. | — |
| Resolution | select | Output resolution. 480p is the budget rung; 1080p is the premium rung.480p · 720p · 1080p | 720p |
| Aspect Ratio | select | Aspect ratio of the generated video. Auto lets the model choose from your prompt.Auto · 16:9 · 4:3 · 3:2 · 1:1 · 2:3 · 3:4 · 9:16 | auto |
| Duration | select | Length of the generated video in seconds (1-15).1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 | 6 |
Pricing
From $0.012 per second
Pay per generation — only pay for what you use.
480p
$0.012/s
per second
720p
$0.0225/s
per second
1080p
$0.04/s
per second
What a video costs
| Duration | 480p | 720p | 1080p |
|---|---|---|---|
| 5 seconds | $0.06 | $0.113 | $0.20 |
| 10 seconds | $0.12 | $0.225 | $0.40 |
Use cases
Social content
- Sound-on hooks and openers
- Vertical 9:16 story clips
- Meme and reaction videos
- Daily posting at draft prices
Marketing & ads
- Concept ads with audio
- Product teaser clips
- A/B test multiple ad variants
- Seasonal campaign spots
Film & previz
- Establishing shots from a prompt
- Mood pieces with ambience
- Cheap 480p shot exploration
- Scene beats up to 15 seconds
Music & audio-led
- Visualizers scored by the model
- Ambient loops with sound
- Lyric-inspired scene clips
- Sound-design experiments
Frequently asked questions
What is reference-to-video in Grok Imagine Video 1.5?+
It's the mode of xAI's Grok Imagine Video 1.5 that generates a video from up to 7 reference images instead of a single starting frame. The references contribute people, objects, or styles — the model keeps them consistent in the output — and you cite them in the prompt as @Image1, @Image2 to direct who does what. Clips run 1 to 15 seconds with synchronized audio included.
How is reference-to-video different from image-to-video?+
Image-to-video animates one still image — the output starts from and looks like your upload. Reference-to-video composes a new scene featuring the people, objects, or styles from up to 7 images, so the framing and setting come from your prompt while the subjects stay consistent. Use image-to-video to animate a finished frame, and references to keep a character or product recurring across many different shots.
How many reference images can I use?+
Between 1 and 7 per generation. Each can contribute something different — one for the main character, one for an object they hold, one for the visual style — and you reference them by position in the prompt as @Image1 through @Image7.
How do I keep a character consistent across multiple videos?+
Reuse the same reference images for every generation. On a Scenetra board you can generate a character with an image model like Nano Banana 2, wire that output into the Grok reference-to-video node, and render shot after shot with the same face — changing only the prompt. No fine-tuning or training step is involved.
Does reference-to-video generate audio?+
Yes — like the whole Grok Imagine Video 1.5 family, it generates synchronized audio with the video in a single pass, and the sound is included in the per-second price. Describe the ambience or effects you want in the prompt alongside the action.
One-click tools built on Grok Imagine Video 1.5 Reference to Video
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View model →Start creating with Grok Imagine Video 1.5 Reference to Video
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