Growing an audience
Running the business
Both cover transcription & show notes. Here is what separates them on price, billing, what you can take with you, and coverage.
| AssemblyAI | Castmagic | |
|---|---|---|
| Starting price | Not listed | From $19 |
| Pricing model | Free plan, paid tiers | Paid subscription |
| Free tier | Yes | No |
| Billing | Usage-based | Annual only |
| Free trial | Not stated | Not stated |
| API | Yes | Not stated |
| Data export | Not stated | Not stated |
| Their cut | Not stated | Not stated |
| Runs on | Web | Web |
| Covers | Transcription & Show Notes | Transcription & Show Notes, AI Content Tools, Audio & Podcasting |
| Works with | Nothing in particular | Podcast |
| Founded | Not listed | Not listed |
| Reader rating | No reviews yet | No reviews yet |
| Live deals | None right now | None right now |
Speech to text you call as an API
AssemblyAI is a speech to text API rather than an app: you send audio and get back a transcript, with speaker labels and summarisation available on the same call. Both pre-recorded and live streaming are covered, and the free tier is generous enough to build something real before paying anything. It is bought by people writing software, not by people who want a transcript this afternoon.
Our note
At fifteen cents an hour the price is not the thing to agonise over, so pick on accuracy for your audio and on whether you want speaker labels in the same call. Deepgram is the direct comparison and the two trade places depending on the recording.
Turn an episode into a week of posts
Castmagic takes a recorded episode and returns show notes, timestamps, clips, a newsletter and social posts from the same upload, which is the repurposing job most podcasters do by hand on a Monday. Custom prompts let you fix the house style once. Hours are a library total rather than monthly, so a long back catalogue eats a plan on import.
Only on this side
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.