What is HunyuanVideo 1.5 good at?

One person doing one thing, shot with a readable camera move. In our runs skin and fabric looked natural and faces performed convincingly on image-to-video. Tencent built it as a compact 8.3-billion-parameter model that runs on consumer GPUs, and here it makes 480p or 720p clips of 5 or 8 seconds.

Is HunyuanVideo 1.5 uncensored?

Yes. Nothing filters the prompt, the photo or the result. In our tests mid-level probes rendered as written, and at the strongest level the model itself held back part of the scene. Everyone on screen must be an adult, and the rights and consent for what you generate stay with you.

No. Every clip is a silent 24 fps MP4. If you need a soundtrack generated with the picture, LTX-2 19B returns stereo audio with every clip.

In our runs a 5-second 480p clip took 63 to 150 seconds of model time, most between 70 and 130, an 8-second 480p clip 77 to 151 seconds, and a 5-second 720p clip 142 to 241 seconds.

Which sizes can I get?

Text-to-video gives 832 x 480, 480 x 832, 1280 x 720 or 720 x 1280, chosen by the ratio (16:9 or 9:16) and the resolution. Image-to-video follows your photo: a 16:9 photo came back at 832 x 464 on 480p and 1264 x 720 on 720p.

Do I need a prompt for image-to-video?

No, a call without a prompt still animated the photo in our tests, but a sentence about what happens next gives you control over the motion. Describe the action, not what the picture already shows.

Why do shots with two people look odd?

Close contact between two people is the weak spot of this model: limbs tend to tangle and anatomy slips. Single subjects held up much better in our tests.

Why did my image request fail?

Usually the image link could not be fetched; an unreachable URL answers with a download error and an HTTP status. Use a public, direct link to the image file.

HunyuanVideo 1.5 API

tencent/hunyuan-video-1.5/image-to-video

HunyuanVideo 1.5 image-to-video animates a single photo into a 5 or 8 second clip at 480p or 720p that keeps the photo's shape. The motion prompt is optional, the output is a silent 24 fps MP4, and there is no content filter.

From $0.024/s

Run model View API

Input

Image to video

Prompt

Input image1/1

Drop files or media links, paste, or browse · 1 file · Max 10 MB · JPG · PNG · WEBP · GIF

Resolutionaffects price

Durationaffects price

Seed

Safety checkerOff

SpicyAPI does not run a safety checker on this model. Your prompt and media go to the model as written, and the model itself decides what comes back.

Checking your account before enabling submission and pricing.

Output

Ready for a new run

Example result

Extend

Video upscaling

Video editing

{
  "model": "tencent/hunyuan-video-1.5/image-to-video",
  "input": {
    "resolution": "720p",
    "duration_seconds": 5,
    "seed": 520504,
    "prompt": "She lifts the glass and takes a slow sip without looking away from the camera, sets it down on the bar and lets a slow, amused smile spread; a shaft of late sun slides across her shoulder and the dust turns gold in the beam. Static camera.",
    "image_url": "https://cdn.spicyapi.ai/models/examples/inputs/ec9a976432981725.jpeg"
  }
}

Introduction

HunyuanVideo 1.5 Image to video animates one photo into a 5 or 8 second clip at 480p or 720p. HunyuanVideo 1.5 is Tencent's open 8.3-billion-parameter video model. The clip keeps the shape of your photo, the prompt is optional, and the platform adds no content filter.

Choose a mode by starting material

What you have	Mode
a written description	HunyuanVideo 1.5 Text to video
a photo to animate	HunyuanVideo 1.5 Image to video

Key features & highlights

Faces that survive the motion

In our tests the people in the photo kept their faces, hair and wardrobe through the clip.

Any shape

There is no aspect-ratio field: portrait, square or widescreen photos come back in their own shape.

Prompt optional

Send only the photo and the model decides the motion, or describe the next moment yourself.

Uncensored

No filter on the photo, the prompt or the clip. In our tests most content probes rendered as written; the strongest held part of the scene back.

Request parameters

Request parameters for HunyuanVideo 1.5 · Image to Video
Parameter	Required	Description
`prompt`	No	Optional. Describe what the person does next and what the camera does; leave it out to let the model animate the photo on its own. at least 1 characters
`image_url`	Yes	The opening frame. The clip starts from this photo and keeps its aspect ratio; a public, directly downloadable link.
`resolution`	No	480p or 720p (the default). 720p costs twice as much per second; the shape follows your photo. `480p` · `720p` · Default: `720p`
`duration_seconds`	No	5 or 8 seconds, billed per second. `5` · `8` · Default: `5`
`seed`	No	Keeps runs comparable while you change the prompt. It does not promise a frame-identical clip. `≥ 0` · `≤ 2147483647`

Pricing

Billed per second of output at the chosen resolution. The shape of your photo does not change the price.

Pricing
Specification	Price
`480p`	$0.024 / second
`720p`	$0.048 / second

Use cases

Living portraits

A headshot that smiles, sings or turns to the camera.

Product and fashion stills

Add fabric movement, a camera drift or a turn to a catalogue photo.

Animate your users' images without a filter

Animate your users' own images with no content filter, adults only.

Explore key use-case tutorials

Prompt guide & pro tips

Describe the next moment

Write what the person does after the photo was taken, not what the photo shows.

Say what must stay

If a garment or prop must not change, say so in the prompt.

One person is easier than two

Two people in contact tend to tangle; keep their motion slow.

Use a clean, public link

The image must download directly; a link that needs a login fails and is not charged.

API quick start

# Generate the idempotency key once; reuse it when retrying after a lost response.
export SPICY_IDEMPOTENCY_KEY="${SPICY_IDEMPOTENCY_KEY:-$(uuidgen)}"
curl -X POST https://api.spicyapi.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $SPICY_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $SPICY_IDEMPOTENCY_KEY" \
  -d '{
  "model": "tencent/hunyuan-video-1.5/image-to-video",
  "input": {
    "duration_seconds": 5,
    "image_url": "https://example.com/reference.png",
    "prompt": "A slow aerial shot drifting over a misty pine forest at sunrise",
    "resolution": "720p"
  }
}'

# Copy data.taskId from the response into TASK_ID, then poll the status.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.spicyapi.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $SPICY_API_KEY"

See the API reference for authentication, the complete schema, polling, and error handling.

Related models and next tasks

Missing the model you need?

Tell us what to add and where you would use it. Requests go to the people who decide what gets onboarded next.

Turn a prompt or one photo into a lifelike five-second clip

HunyuanVideo 1.5 is Tencent's open 8.3-billion-parameter video model, and here it turns a text prompt or a single photo into a 5 or 8 second clip at 480p or 720p. In our runs it was strongest on one person doing one thing: natural skin and fabric, a singer closing her eyes mid-song, a man turning to the camera with a slow smile. Clips are 24 frames per second and silent. Nothing filters the prompt, the photo or the result; at the strongest level of our content probes the model held part of the scene back, and that is the model's own restraint, not a platform filter.

Open the playground

Turn a prompt or one photo into a lifelike five-second clip

Model: Tencent HunyuanVideo 1.5, 8.3 billion parameters, released as open weights in November 2025
Clip length: 5 or 8 seconds at 24 fps; 8 seconds is 193 frames, 5 seconds is 121
Resolution: 480p or 720p; text-to-video gives 832 x 480, 480 x 832, 1280 x 720 or 720 x 1280
Speed: 480p, 5 s: usually 70 to 130 seconds of model time; 720p, 5 s: 142 to 241 seconds
Audio: None; every clip is silent
Content filter: None; the strongest probes came back toned down by the model itself

Best at: One person, one action, one camera moveSingle subjects held up well in our tests: skin, fabric and faces stayed natural, and on image-to-video the face performed convincingly. Write one action per clip and say what the camera does.
Photo to clip: Image-to-video keeps your picture's shapeThe clip starts from your photo and keeps its proportions: a 16:9 photo came back at 832 x 464 on 480p and 1264 x 720 on 720p, a 2:3 photo at 512 x 768 on 480p. The prompt is optional; a call without one still animated the frame.
Limits: What it will not doNo audio track, only 5 or 8 seconds, only 480p and 720p, and no aspect-ratio field on image-to-video because the photo decides. Two people in close contact tend to tangle limbs, so keep to single subjects or a loose, wide-framed slow dance.

Working with HunyuanVideo 1.5

Write the shot, not just the subject

A prompt that names who is in frame, what they wear, what they do over the five seconds and what the camera does gave our best clips. The jazz-club dancer in the gallery came from one sentence about the dress, the turn, the amber light and a slow circling camera; the four-frame sheet is one clip.

Start from a photo when the face matters

Image-to-video fixes the person, the wardrobe and the light, so the prompt only has to describe the next moment. Our singer photo became a clip of her leaning toward the microphone and closing her eyes; the left frame is the photo, the right one is a few seconds in.

Draft at 480p, finish at 720p
480p 5-second clips usually came back in 70 to 130 seconds against 142 to 241 for 720p, so test the idea small and rerun the prompt you like at 720p. Same prompt and seed give a similar clip, never an identical one.
Pick the shape on text-to-video
Text-to-video takes 16:9 or 9:16 and builds the frame from the ratio plus the resolution. Vertical 720 x 1280 suits feeds; the rain-soaked rooftop portrait in the gallery is a 9:16 clip. On image-to-video, crop the photo to the shape you want first.
Use the negative prompt for glitches
On text-to-video, a short list such as “blurry, distorted hands, extra limbs, text, watermark” keeps common artefacts out. Keep it to things you never want and describe the look in the main prompt.

Who uses HunyuanVideo 1.5

Social and short-form teams
Vertical clips for feeds
Generate 9:16 at 720 x 1280, keep one seed per series, and compare versions fairly. The rooftop example, a man pushing back wet hair under neon rain, came from a text prompt alone.
Photographers and portrait artists
Bring a still to life
Send a portrait and describe what the person does next. Our man in a white bathrobe at a window turned to the camera with a slow smile while the city lights came on outside; the left frame is the photo, the right one is the clip.
Product and travel creators
Motion for a scene you already have
A generated photo of a couple on a yellow scooter on a coastal road became five seconds of riding, hair and dress moving in the wind. Cheap 480p drafts show whether the motion works before you commit to 720p.
Uncensored platform builders
A model that does not push back
Nothing filters the prompt, the photo or the result, so an unfiltered platform does not need a workaround. Everyone on screen must be an adult, and in our tests the strongest probes still came back toned down.

From first clip to finished batch with HunyuanVideo 1.5

Choose the entry point
Text-to-video when you only have an idea, image-to-video when a face, outfit or location must stay fixed.
Draft at 480p for 5 seconds
Write one action and one camera move, add a negative prompt on text-to-video, and run a few seeds.
Read the clip, not the thumbnail
Check hands, faces and any second person. If limbs tangle, simplify the scene to one subject.
Rerun the winner at 720p
Keep the prompt and seed, switch the resolution, and use 8 seconds only if the action needs the time.
Batch the series
Fix the style sentence, change only the subject line, and send the set. Add sound afterwards, since the clips are silent.

HunyuanVideo 1.5 prompts worth copying

A slow push-in portrait

For text-to-video at 9:16. One person, one small action and one camera move.

An adult woman in her thirties in a camel wool coat stands at a rain-streaked bus stop at dusk, tucks a strand of hair behind her ear and looks up toward the camera with a faint smile. Warm shop lights blur behind her, slow push-in, shallow depth of field, cinematic, photorealistic.

Bring a portrait to life

For image-to-video from a portrait. Describe the next moment, not the photo.

The adult man in the denim jacket lifts his coffee cup, glances out of the café window, then turns back to the camera and laughs quietly. Soft afternoon light, the camera holds steady.

A slow dance, kept simple

For text-to-video at 16:9. Keep the pose loose and the framing wide so limbs stay readable.

Two adults in their thirties slow dance on a small rooftop terrace at golden hour, she in a flowing green dress, he in a white shirt with rolled sleeves, a string of lights swaying overhead. Handheld camera drifting around them, warm and intimate, photorealistic.

More HunyuanVideo 1.5 questions

Use it as your lifelike-people workhorse

Pick text-to-video for ideas and image-to-video for faces, write one action and one camera move, draft at 480p, and rerun the winner at 720p.

Keep scenes to one subject, add a negative prompt for glitches, and add sound afterwards because the clips are silent.

Workbench