We built free A/B thumbnail and hook testing into the editor but TubeBuddy charges $15/mo for this

Hey everyone!

Just shipped A/B testing for thumbnails and hooks directly into OpenCut AI. Generate variants, score them automatically, and pick the winner — all inside the editor, no external tools needed.

Thumbnail A/B Testing

Generate up to 4 thumbnail variants, then auto-score each one on:
- Contrast
- Text readability
- Face presence
- Color vibrancy
- Composition

Each variant gets a letter grade (A-F) and an overall score. The winner gets a "Recommended" badge. You can also score thumbnails you've already generated.

Hook A/B Testing

Got a transcript? Generate 5 hook variants — different openings designed to grab attention in the first 3 seconds. Each variant gets an estimated engagement score so you can compare them side by side.

Analytics Dashboard

Tracks your scoring history over time:
- Average composite score
- Grade distribution
- Per-signal breakdown (hook, curiosity, energy, etc.)
- Strongest and weakest signals
- Score trend chart

Why this matters

TubeBuddy puts A/B testing behind their $15/mo Legend plan. VidIQ does the same. We think this should be free and built into your editor — not a separate subscription.

Everything runs locally. No data sent to third parties. MIT licensed.

What other YouTube optimization features would you want built in?