Seedance 1.5 Pro is a web-based AI video generator that produces synchronized audio and video from text prompts or images, offering cinematic quality, multilingual voice synthesis, and precise lip-sync in a single generation process.
What is Seedance 1.5?
Seedance 1.5 is a joint audio-video generation model that creates synchronized visuals and sound from text or image inputs. Developed by the Seedance team, it runs entirely in the browser on the Seedance platform (seedance15.ai). Unlike video-only models, it outputs a video file with embedded voice, sound effects, and ambient audio, all aligned to the visual content. It supports text-to-video and image-to-video modes, with generation parameters like resolution (480p, 720p), duration (5s), and aspect ratio (16:9, 9:16, 4:3, 3:4, 21:9, 1:1).
Key Features
- Joint Audio-Video Generation — Produces perfectly synchronized voice, lip-sync, sound effects, and ambient audio in a single pass from a text prompt or image.
- Precise Lip-Sync & Multilingual Voice — Supports English, Chinese, Japanese, Korean, Spanish, Indonesian, and regional dialects; delivers natural intonation and emotional expression with frame-accurate lip movement.
- Cinematic Camera Control — Enables autonomous camera movements including long tracking shots, Hitchcock zooms, and professional transitions, all synchronized with audio.
- Enhanced Semantic Understanding — Interprets complex narrative context, improving coherence across multi-shot sequences and maintaining character consistency.
- Immersive Sound Effects — Generates contextual environmental audio (e.g., 8-bit game sounds, ambient wind, footsteps) that match on-screen action.
- Image-to-Audio-Video — Transforms static reference photos (e.g., portraits, travel shots) into animated videos with natural movement and synchronized sound, preserving source image identity.
Who is it for?
- Independent filmmakers and cinematic artists — Create short films, music videos, and emotional storytelling sequences with professional-grade cinematography and synchronized dialogue, without a production crew.
- Social media content creators — Produce TikTok, Instagram Reels, and YouTube Shorts with trending visuals, catchy sound effects, and lip-synced voiceovers in minutes.
- Game developers — Generate pixel-art game trailers, gameplay videos, and interactive content with contextual 8-bit audio and action sound effects that match every jump or run.
- Advertising and brand teams — Create multilingual commercial content (English, Japanese, Chinese) with authentic accents, product showcases, and promotional ads, reducing production time by 60% (per user testimonial).
What can you do with Seedance 1.5?
- Film & cinematic art creation — Generate short films with nuanced emotion capture, mood-matching music, and atmospheric sound design, all synchronized from a single text prompt.
- Bring photos to life — Upload a family portrait, travel photo, or pet picture; Seedance 1.5 animates it with subtle expressions, movement, and ambient sound, no editing required.
- Short drama & entertainment — Produce multi-shot sequences with consistent character representation, comedic timing, and regional dialect accents for streaming platforms.
- Gaming & interactive content — Create game trailers and gameplay videos with synchronized 8-bit sound effects and spatial audio, boosting engagement (200% increase reported by tester).
How does Seedance 1.5 work?
- Provide input: a text prompt or an image. Describe characters, dialogue, scene, and desired audio elements.
- Customize parameters: resolution (480p/720p), aspect ratio, duration (5s), language, and voice characteristics.
- AI generation: Seedance 1.5 jointly produces the video, voice, lip-sync, sound effects, and ambient audio in one seamless process.
- Download and share: preview the output, adjust if needed, then export with no watermark (on paid plans).
Pricing
Subscription plans (monthly/annually with 50% savings) and one-time credit packs are available:
- Basic — $9.90/month (annual) for 800 credits/month, up to 80 videos, standard speed.
- Standard — $19.90/month (annual) for 2000 credits/month, up to 200 videos, priority generation.
- Pro — $49.90/month (annual) for 6000 credits/month, up to 600 videos, fastest speed.
- Credit Packs — One-time, never expire: Starter ($29.90 for 1000 credits), Creator ($49.90 for 2000), Professional ($99.90 for 5000), Max ($199.90 for 12000).
All plans include Seedance 1.5, Veo 3.1, Sora, Wan, Kling, Hailuo, Pixverse models, AI image generation, and commercial use license. Failed generations do not consume credits.
FAQ
What makes Seedance 1.5 different from other AI video generators?
Unlike video-only models, Seedance 1.5 produces synchronized audio and video in a single process, including lip-sync, voice synthesis, sound effects, and ambient audio, all aligned to the visual content.
What languages does Seedance 1.5 support for voice generation?
English, Chinese, Japanese, Korean, Spanish, and Indonesian, with regional dialect accents for authentic delivery.
Can I use Seedance 1.5 to animate a still image?
Yes. Image-to-audio-video mode takes a static photo and generates a dynamic video with natural movement, facial expressions, and synchronized sound, while preserving the original character identity.
What happens if my video generation fails?
Failed generations due to content policy violations do not consume credits. Adjust your prompt or parameters and try again. If the issue persists, contact support.
Do unused credits expire?
One-time purchased credit packs never expire. Subscription credits reset monthly with each billing cycle.
