We just shipped Virality Score, know if your video will go viral before you publish.

Hey everyone! Excited to share what we've been working on.

We just added Virality Score to OpenCut AI, a neuroscience-backed engagement analyzer that grades your video A-F across 7 signals before you hit publish.

How it works

Drop a video into the editor, click "Check Virality Score," and get:

- Hook Strength — does your first 1.5s grab attention? (33% of TikTok viewers scroll past in 3 seconds)
- Curiosity Gap — is there unresolved tension keeping viewers watching?
- Audio Energy — are your levels and pacing right for the platform?
- Beat Sync — do visual cuts land on audio beats?
- Face Presence — the #1 short-form retention driver
- Emotional Arc — does your clip build to a payoff or flatline?
- Viral Potential — LLM-powered composite prediction

Each signal scores 0-100, rolls into a letter grade, and comes with actionable suggestions ranked by expected impact.

Why we built this

Most creators publish and pray. The difference between 10 views and 100K views is rarely the content — it's the presentation. We used neuroscience research (dopamine prediction loops, orienting response, information-as-reward) to identify what actually holds attention, then built scoring algorithms around real platform data:

- 65% of 3-second viewers watch 10+ seconds
- Text overlays increase view time by 28%
- Videos with 65%+ 3-second retention get 4-7x more impressions

Also in this update: YouTube to Reels

Paste a YouTube URL and OpenCutAI will auto-detect the best 15-90s clips, score each one, reframe to 9:16 with face tracking, add captions, and export ready-to-upload reels. The full pipeline runs locally.

Would love to hear from creators, what signals would you add to the scoring? What's the first thing you'd test this on?