Supported Video Types
Social media shorts, YouTube documentaries, training videos, and narrative series.
Serelius Flow Video adapts to diverse content formats, aspect ratios, sound designs, and production scales.
1. Scene Types: FACT, NARRATIVE, and Mixed Formats
Projects can combine different storytelling archetypes:
| Scene Type | Production Characteristics | Best Suited For |
|---|---|---|
| FACT Mode | No visible character faces; focuses on environments, objects, hands, documents, nature; voiced via off-screen narration. | Educational explainer videos, true crime, historical documentaries, and business briefings. |
| NARRATIVE Mode | Prominent characters with visible faces; anchored by 1:1 character sheets and synced with natural lip movements. | Fictional stories, narrative short films, customer dramatizations, and character-driven reels. |
| Mixed Format | Seamless combination of FACT and NARRATIVE scenes across a unified timeline. | Full-length documentary productions featuring narrative reenactments. |
2. Aspect Ratios and Social Platforms
Configure the aspect ratio to match your distribution channel:
| Aspect Ratio | Primary Channels | Framing & Subtitle Adaptations |
|---|---|---|
| 9:16 Vertical | Instagram Reels, YouTube Shorts, TikTok, Stories | Center, Top, and Bottom framing options; dynamic subtitle font scaling. |
| 16:9 Horizontal | YouTube, TV broadcasts, course platforms, keynotes | Center, Left, and Right third-rule framing; widescreen subtitle layout. |
3. Audio Tracks and Localization Options
Choose sound tracks according to your delivery model:
- Complete Audio: Full voice-over and sound effects generated directly by Google Flow.
- SFX Only: Ambient sound effects and foley remain intact while dialogue is silenced, allowing you to insert personal or celebrity voice-overs in post.
- Mute: Pure silent footage for music videos, b-roll footage libraries, or custom studio sound design.
- Three Core Languages: Scripts and voice synthesis support Brazilian Portuguese, US English, and Neutral Spanish.
4. Scalable Durations and Series Production
The engine accommodates content ranging from micro-clips to long-form series:
- Micro-Content: Single-scene 8-second hooks and punchy 15-to-30-second shorts.
- Long-Form Productions: Generate scripts up to 225 scenes (30 continuous minutes of video).
- Episodic Consistency: To maintain an identical visual style across an entire series, simply copy your
STYLE_FATOandSTYLE_NARRATIVAprompt texts from episode to episode.
5. Visual Consistency and Production Pipelines
Multiple continuity anchors ensure your output looks cohesive:
- Recurring Characters: 1:1 canonical portraits and reference sketches ensure persistent appearance across scenes.
- Persistent Environments: Reuses approved frames from matching location tags to anchor room and landscape backgrounds.
- Branded Props & Assets: Company logos, branded assets, and key products anchor cleanly into generated shots.
- Collaborative Production: Export project JSON files to share scenes, prompts, and settings across your creative team.
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