Providers and ModelsTencent

Hunyuan Video 1.5

Hunyuan Video 1.5
Tencent · Video Generation
POST /v1/videos/generations

8.3B-parameter video model with native 720p output (upscalable to 1080p), strong motion coherence, and bilingual prompt understanding up to 10s.

At a glance

FieldValue
Model idhunyuan-video-1-5
Input modalitiesText, Image
Output modalitiesVideo
Context window-
Weight precisionMixed FP16/FP8
Features1080p_upscale, bilingual
Native inferenceYes
NewNo
Supported endpointsPOST /v1/videos/generations

Pricing

ChargeSpecRate
480pper second$0.061 (was $0.075)
720pper second$0.29
1080p (upscaled)per second$0.67

Example request

$curl https://api.empiriolabs.ai/v1/videos/generations \
>  -H 'Authorization: Bearer $EMPIRIOLABS_API_KEY' \
>  -H 'Content-Type: application/json' \
>  -d '{"model": "hunyuan-video-1-5", "prompt": "sunrise over the ocean", "duration": 6}'

Parameters

ParameterTypeRequiredDefaultDescription
promptstringyes-Scene description.
modeenumno"auto"Auto detects image-to-video when an image is attached; otherwise text-to-video. · Allowed: auto, t2v, i2v
resolutionenumno"480p"480p is the fastest native tier. 1080p is upscaled and capped at 5 seconds. · Allowed: 480p, 720p, 1080p
aspect_ratioenumno"16:9"Output aspect ratio (1:1, 16:9, 9:16, 4:3, 3:2, etc.). · Allowed: 16:9, 9:16, 1:1, 4:3, 3:4
durationnumberno5Clip length in seconds. 1080p is capped at 5 seconds. · Range: 1 – 10
cfg_scalenumberno6.0Classifier-free guidance. Higher = follows prompt more strictly. · Range: 1.0 – 20.0
stepsnumberno25Diffusion steps. More = higher fidelity, slower. · Range: 10 – 50
imagestringno-Reference image URL for i2v mode.
negative_promptstringno""What to avoid.
seednumberno-Reproducibility seed.

Notes

8.3B-parameter Mixture-of-Experts model with strong motion coherence and bilingual prompt understanding.

Constraints

  • 1080p is upscaled from native 720p and limited to 5s duration

Image-to-Video formats

  • jpg, jpeg, png, webp, heic, heif, bmp, tiff, tif

Estimated generation time

  • 480p: ~2 min
  • 720p: ~8 min
  • 1080p: ~20 min

Machine-readable schema: GET https://api.empiriolabs.ai/v1/models/hunyuan-video-1-5.