Opus Clip vs Castmagic
Side-by-side comparison of Opus Clip and Castmagic.
Turns long videos into viral short clips automatically
Turns audio and video into ready-to-publish content
What they are
Opus Clip
Opus Clip uses AI to analyze long-form video content and extract the most engaging moments as short clips sized for TikTok, Reels, and Shorts. Creators, marketers, and podcasters use it to repurpose existing content without manual editing. The AI scoring system ranks clips by predicted virality, which is a useful starting point, though its judgment does not always align with your specific audience.
Castmagic
Castmagic ingests podcast episodes, video recordings, and audio files, then uses AI to produce transcripts, show notes, social posts, newsletters, and more from a single upload. Podcasters, course creators, and video producers use it to repurpose long-form content without manual editing. It covers the full repurposing workflow in one place, though the output still benefits from a human edit before publishing.
if you need video editing and ai writing. It has a usable free tier to start with.
- +Processes long videos quickly and outputs multiple clip options in one run
- +Auto-generates captions with word-level highlighting baked in
- +Virality score gives a fast triage signal across many clips
if you need transcription and ai writing. Starts at 21/mo.
- +Handles transcription and content generation in a single workflow
- +Supports multiple output types: show notes, social captions, newsletters, timestamps
- +Custom AI prompts let you tailor outputs to your own tone and format
Which to choose
Opus Clip and Castmagic both cover ai writing, so this is a real either-or for some teams. The right pick depends on which one's wider feature set and pricing fit how you work.
Read the full reviews for Opus Clip and Castmagic.
Pricing checked 3 Jun 2026.