| What it does | AI audio generator for creating dialogue, music, ambience and sound effects from scene prompts
| Convert PowerPoint and PDF slides into narrated videos with an AI avatar presenter
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| Stage | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free plan with 10 free credits. Pro: $19.99/month (monthly) or $199.90/year (30,000 credits/year); Max: $49.99/month (monthly) or $499.90/year (90,000 credits/year). Credit packs also available.
| Free tier: 60 credits on signup (enough for 6-page deck). Credits cost 10 per page. Credit packs: Starter $39 for 2,000 credits (~200 slides); Creator $99 for 6,000 credits (~600 slides); Studio $299 for 20,000 credits (~2,000 slides). All packs never expire. Credits can also be purchased via monthl
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| Key features | - Multi-speaker dialogue generation with emotional tone and timing control
- Scene ambience and background music composition
- Voice cloning with audio reference guidance
- Image and audio reference inputs for contextual generation
- Output format customization: WAV, MP3, PCM, OGG Opus
- Adjustable sample rate from 8 kHz to 48 kHz
- Speed, volume and pitch controls on generated audio
- API access for Pro and Max plan holders
- Up to 2 minutes maximum audio duration per generation
- Preset voices including Vivi 2.0, Sophie 2.0, Monkey King 2.0, Magnus and Celeste
| - Cloud-based processing with no GPU installation required
- Support for PowerPoint (.pptx, .ppt) and PDF files up to 40 pages
- Editable draft scripts generated from slide text before rendering
- Custom presenter registration from 8-30 seconds of video
- Voice cloning from reference audio on all plans
- Per-slide chapters for video navigation
- Single MP4 output per deck with lip-sync
- Failed renders fully refunded
- Shareable links for finished videos without requiring viewer account
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| What makes it different | - All-in-one audio generation combining dialogue, music, ambience and effects in a single mixed track
- Scene-first workflow directing complete audio narratives rather than separate speech generation
- Powered by ByteDance's Seed Audio 1.0 model for professional-quality audio generation
- Multimodal input supporting text prompts combined with images or multiple audio references
- Voice cloning capability using authorized audio references to guide vocal character and delivery
| - 9–35× cheaper per minute than competitors like Synthesia and HeyGen
- No video length cap: renders up to 80 minutes as a single video without splitting
- Custom presenters and voice cloning included on all plans, including free tier
- Self-hosted delivery option available for organizations with data residency requirements
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 0 | 0 |
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| Citation Flow (Majestic) | 18 | 0 |
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| Referring domains (Majestic) | 7 | 0 |
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SeedAudio
DocPresenter