Seedance 1.5 Pro — AI Video Generator
AI video generation model on Artifio AI. UI groups: Prompt to Video, Image to Video.
Start with Seedance 1.5 Pro
About Seedance 1.5 Pro
Seedance 1.5 Pro is ByteDance's joint audio-video generation model, released by the Seed team on December 16, 2025. It was the first Seedance to generate sound and picture together: dialogue, ambient effects, and music come out synchronized with the visuals instead of being added afterward. ByteDance built it on a unified multimodal framework based on the MMDiT architecture, with supervised fine-tuning and RLHF tuned for audio-visual tasks, and an inference stack the team says reaches more than 10x end-to-end acceleration.
Where Seedance 1.0 aimed at raising the floor of motion stability, ByteDance describes 1.5 Pro as an attempt to raise the ceiling: stronger visual impact, cinema-style camera moves, and speech that lip-syncs across languages and Chinese dialects. This entry covers the text-to-video mode. On Artifio it runs in the same workspace as 100+ other models, paid per generation from a single wallet.
Features
- Generates video and synchronized audio in one pass from a text prompt, including voices, ambient sound, and effects.
- Speech generation covers a wide range of languages and Chinese dialects, with documented examples in Sichuanese and Cantonese, aligned to lip movement.
- Cinema-grade camera behavior, including continuous long takes and dolly zoom (Hitchcock) moves described in natural language.
- Deep semantic understanding fills in narrative detail and keeps character emotion and action coherent across a clip.
- Evaluated on SeedVideoBench 1.5, a benchmark ByteDance developed with working film directors.
What people use it for
- Short drama and vertical-series scenes with spoken dialogue generated in one pass.
- Ads and social spots that need sound design baked in rather than assembled in an editor.
- Dialect and multilingual character content, a documented specialty.
- Stylized camera studies: long takes, push-ins, and dolly zooms from prompt descriptions.
Reported strengths
- Sound and picture come from one model, so lip-sync and effect timing hold together without manual alignment.
- ByteDance reports top-tier audio generation results among industry models, strongest in Chinese dialogue scenarios.
- Camera-language control is unusually specific, down to named cinematography moves.
- Narrative coherence across characters and shots improved over Seedance 1.0 by design.
Reported limitations
- ByteDance's own release notes say motion stability still needs improvement in complex scenarios.
- Multi-character dialogue is underdeveloped, and singing performance is limited; generated opera deviates significantly from traditional standards, per the release notes.
- Its arena standing has faded since release: as of mid-2026 Seedance 1.5 Pro sits mid-table on the Artificial Analysis text-to-video leaderboard, well behind its successor Seedance 2.0.
Sources
- Sound and Vision, All in One Take: The Official Release of Seedance 1.5 Pro (ByteDance Seed)
- Seedance 1.5 pro (ByteDance Seed)
- Text to Video Leaderboard (Artificial Analysis)
Seedance 1.5 Pro FAQ
What is Seedance 1.5 Pro?
Seedance 1.5 Pro is an AI model (prompt to video) available on Artifio.ai through bytedance. You can run it in our workspace from a single shared wallet and download your outputs.
How much does Seedance 1.5 Pro cost on Artifio?
Seedance 1.5 Pro has a starting estimate of $0.00875 per second on Artifio.ai. Review the estimate for your settings in the workspace before confirming. Usage-billed models reconcile the final charge after generation.
How do I use Seedance 1.5 Pro on Artifio?
Click Generate Now to open the workspace at /create/seedance-15-pro. Fill in the form fields, review the live cost estimate, and run your generation.
What kind of outputs does Seedance 1.5 Pro produce?
Seedance 1.5 Pro is configured for prompt to video workflows in the video category. See the technical parameters below for supported inputs and options.
Can I try Seedance 1.5 Pro for free?
Sign up free, top up your wallet from $1, and you can run Seedance 1.5 Pro pay-as-you-go without a separate subscription for this model.
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