Developer documentationModels and specifications

Models and specifications

H3 video task API · /api/v3

Model list

Model IDText to videoImage to videoAvailability
H3 Proh3-pro480p · 5 / 10 / 12 s; 720p · 5 s480p · 5 / 10 / 12 s; 720p · 5 sCurrently available
H3 Standardh3-standard480p · 5 / 10 s; 720p · 5 s480p · 5 s; 720p · 5 sNot yet available

Specifications come from the current model configuration. Supply availability and model capabilities are separate.

Choosing a model

Check this table and the console's Models page for available models and specifications. Set the request body's model(for example, h3-pro).

Output specifications

The H3 Pro API accepts five aspect ratios: 16:9, 9:16, 1:1, 3:4 and 4:3. Execution depends on the specifications verified on available nodes. Landscape/portrait size examples: 832 × 480 / 480 × 832 at 480p; 1280 × 736 / 736 × 1280 at 720p. Output is 24 fps with audio by default; generate_audio=false mutes it. The 5-second preset contains 124 frames, approximately 5.17 seconds.

1080p, custom aspect ratios, multiple reference images, first-and-last frames, video or audio references, draft mode and fixed-camera parameters are not supported.