dreamina-3-0/text-to-video
Generate lifelike motion visuals fast with Dreamina 3.0 for designers.
Seedance 1.5 Pro achieves a breakthrough in "Sound and Picture Unity." It doesn't just add sound; it generates environment sounds (wind, footsteps), action sounds (swords clashing), and background music that perfectly match the visual rhythm. The model ensures millisecond-level alignment between visual motion and audio waveforms, eliminating the "dubbing disconnect" often seen in other models.
This model is a powerhouse for character animation. It supports multi-character dialogue with distinct voices and highly accurate lip-sync.
Seedance 1.5 Pro moves beyond simple motion to complex storytelling.
As an I2V model, it uses the first frame (your uploaded image) to strictly lock the character's appearance, lighting style, and composition. It extends the static image into a dynamic narrative, ensuring the subject doesn't morph or lose identity even during complex movements or long 12-second generations.
| Parameter | Type | Default/Range | Description |
|---|---|---|---|
| prompt | string | <500 chars | Detailed description of the action, camera movement, and audio atmosphere (e.g., "speaking in English," "sound of rain"). |
| Parameter | Type | Default/Range | Description |
|---|---|---|---|
| resolution | enum | 480p, 720p | Output resolution. 720p provides the best texture details. |
| ratio | enum | Adaptive, 16:9, 9:16, 1:1, etc. | Aspect ratio. "Adaptive" automatically fits your uploaded image's dimensions. |
| duration | integer | 4–12 (seconds) | Video length. |
To help you explore the audio-visual synchronization capabilities of Seedance 1.5 Pro, we have curated a list of high-quality examples. You can copy and paste these prompts directly into the input field to test how Seedance 1.5 Pro handles complex soundscapes, dialogue, and emotional expression.
| Scenario / Capability | Prompt Example (Copy & Paste) |
|---|---|
| 1. Ambient Sound | The cruise ship emits a roar as it sails on the sea, with the sounds of splashing waves and the cries of seabirds |
| 2. Dynamic Sound Field | Close-up huge explosion sound , the sound decays significantly with time and space echoes |
| 3. Solo Monologue | The drunkard, with his speech slurred and his logic muddled, said: I ... I want to tell you ... (hiccup)... You're my best friend . After saying that, his emotions broke down, with a tone of grievance and sobbing, and finally he shouted out in a fit of rage, They're all using me! Then he broke down and cried |
| 4. Multi-person Conversation | The man and woman looked at each other affectionately, and the man was very unwilling and incomprehensible. With an angry voice, he said, " We clearly love each other, why can't we go to the end? " The woman turned around and left. The camera switched to a close-up of the woman's face, choking and saying, " I'm sorry " The background is the wind blowing the waves, the sound of the sea pushing against the shore , |
| 5. Emotional Expression | Subject: young male, furious expression (frowning, baring teeth, tense facial muscles), tense body with fists clenched, making angry noises running, with rapid breathing , rapid footsteps, heavy landing sounds . Dynamic blurred street scene background; Atmosphere: intense emotional tension, low light and high contrast tones, realistic movie-like night scene |
| 6. Onomatopoeia (Non-verbal) | The sky is windy, the wheat ears are swaying in the air, making a rustling sound, the little girl and the puppy are playing in the field, the little girl's laughter is infectious, the camera cuts, the puppy faces the sky and barks twice |
| 7. Film & TV Scene | The background sound is the sound of heavy rain and the sound of thunder and lightning The accompaniment is relatively tense music ; the figure in the distance in the picture says in a voice of anger mixed with the sound of rain: "Run, why don't you run?" , then the person kneeling in front of the camera says in a weak voice: "Cut the crap, shoot "; the camera cuts to the hand of the main figure in the distance, who slowly raises the gun in his hand and pulls the trigger of the empty gun |
| 8. Advertising Scenario | Advertising style; the main character in the picture glances at the apple in her hand and then says in a gentle voice with a mature woman's tone: "Grown in the golden fruit belt at 35° north latitude, with a day-night temperature difference exceeding 15°C, grown without pollution, with delicate pulp, high nutrition, rich sweet fragrance, and extremely satisfying!" |
| 9. Promotional Video | A promotional video of a certain city; The background music is grand and imposing ; |
| 10. Immersive/ASMR | Headset-style sound pickup, immersive audio; a kitten slurping noodles, with clearchewing sounds |
| 11. Music Performance | The character is immersed in a guitar performance, with the melody leaning towards sadness |
- 1.0 Pro: Focused on the "Baseline" (Stability). It generates silent videos with good motion stability but lacks audio and dynamic tension.
- 1.5 Pro: Focuses on the "Upper Limit" (Impact). It adds native audio generation, supports complex camera moves, and delivers significantly higher visual tension and narrative expressiveness. It is slower (~60s for 5s) but produces final-quality results.
- 1.0 Lite: Optimized for Speed (~10s generation). Best for rapid prototyping or testing prompts.
- 1.5 Pro: Optimized for Quality. Use 1.5 Pro when you need 720p resolution, lip-sync, and production-ready details.
- While competitors offer strong video generation, Seedance 1.5 Pro stands out with its "Audio-Visual Joint Generation" architecture. It is currently the industry leader in syncing dialect-specific speech and environmental sounds directly with video generation in a single inference step.
Developers can integrate Seedance 1.5 Pro via the RunComfy API. The endpoint supports full multimodal control, allowing you to send an image + text prompt and receive a fully rendered MP4 with audio. This is ideal for building automated content creation agents.
Note: API Endpoint for Seedance 1.5 Pro
If you want to create a video from scratch without a reference image, use the Seedance 1.5 Pro (Text-to-Video) playground.
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Seedance 1.5 Pro is an advanced AI video generation model designed to create cinematic video content from text prompts and optional visual inputs. It can generate visuals together with built-in dialogue, ambient sound effects, and background music, enabling cohesive audio-visual output with natural synchronization. The model is commonly used for creative storytelling, marketing videos, social media content, and other scenarios that benefit from integrated video and audio generation.
Seedance 1.5 Pro offers limited free credits upon registration, but continued usage or high-resolution image-to-video outputs typically require purchasing credits according to the platform’s pricing policy.
Seedance 1.5 Pro builds on earlier versions with improved motion coherence, higher visual fidelity, and stronger prompt adherence, while introducing native audio generation as part of the video creation process. The model can generate dialogue, ambient sound effects, and background music alongside video content, enabling more cohesive audio-visual synchronization and natural lip movement in speaking scenes.
Seedance 1.5 Pro is well suited for marketers, content creators, filmmakers, and designers who want to produce cinematic video content with integrated visuals and audio. It is ideal for users who need high-quality video generation with built-in dialogue, sound effects, and music, without relying on complex editing or post-production workflows.
Seedance 1.5 Pro supports both video and audio generation natively. In addition to visuals, the model can generate dialogue, ambient sound effects, and background music as part of the same video generation process. Audio and visuals are produced in a synchronized manner, enabling cohesive audio-visual output without relying on third-party post-processing tools.
Seedance 1.5 Pro has limits such as video length (typically 4–12 seconds), resolution up to 720p, and lack of official ByteDance documentation for a dedicated 1.5 model. Complex image-to-video transitions may require refined prompts.
Seedance 1.5 Pro differentiates itself through stable subject consistency, cinematic motion control, and high visual fidelity, while also generating audio and visuals together as a unified process. Unlike many tools that focus on visuals alone, it can produce dialogue, ambient sound effects, and background music in sync with the video, resulting in more natural, cohesive audio-visual output.
RunComfy is the premier ComfyUI platform, offering ComfyUI online environment and services, along with ComfyUI workflows featuring stunning visuals. RunComfy also provides AI Models, enabling artists to harness the latest AI tools to create incredible art.
