Castmagic
Castmagic turns audio and video recordings into transcripts, show notes, blogs, newsletters, and social posts automatically.
Independent overview by new Mantra · updated September 28, 2026
- Category
- Marketing
- Pricing
- Hobby $19/mo, Starter $48/mo, Team $139/mo (annual; $29/$69/$199 month to month); Business & Scale from $699/mo
- Implementation
- Under 1 week
- Adoption risk
- Low
- Integrates with
- Zapier, Slack, Notion, Zoom/Riverside import
If you record podcasts, webinars or client sessions and the written follow-up never gets done, Castmagic turns each recording into a transcript, show notes, a blog post, a newsletter and social captions in one run. Plans start at $19 a month billed annually.
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Watch: how Castmagic works
What Castmagic does
Castmagic is an AI-powered platform that ingests audio and video files and produces a range of written content from them. Upload a recording — a podcast episode, webinar, meeting, interview, or coaching session — and the solution generates a transcript, summary, show notes, blog post, newsletter, social captions, and more without manual editing. The vendor describes this as turning one recording into many content assets.
Beyond single-file processing, the platform supports multi-brand workspaces with folder structures, user permissions, and approval workflows, making it usable by agencies or teams managing content for more than one client or brand. Teams can train a brand voice, build reusable prompt templates, and search across their entire content library by meaning rather than exact keyword. A campaign builder lets users produce several assets from one recording in a single run.
Castmagic connects to over 1,800 import sources including YouTube, Google Drive, Vimeo, Loom, and RSS feeds, and integrates with Zapier, Slack, Notion, and Zoom/Riverside for workflow automation. Implementation is estimated at under one week. There is no free plan; paid plans start at $19 per month billed annually (Hobby).
Key capabilities
Transcript and content generation
The solution transcribes uploaded audio or video and automatically drafts show notes, blog posts, email newsletters, LinkedIn posts, and social captions from the same recording. This happens within the platform without requiring separate writing solutions.
Multi-asset campaign builder
A campaign builder takes a single recording and produces a set of content assets — such as a blog post, email sequence, social posts, and newsletter — in one workflow. This reduces the number of manual steps needed to distribute content across channels.
Brand voice and template controls
Teams can define a brand voice profile — tone, vocabulary preferences, and writing style — and build reusable prompt templates. These settings apply consistently across content generated for a given brand or client.
Semantic library search
The platform's search matches meaning rather than exact words, so searching for a concept surfaces relevant quotes and moments from across your full recording library even if the exact phrase was never used.
Multi-client workspace management
Agencies and teams can set up separate workspaces for different brands or clients, each with its own folders, members, and permission levels. A built-in draft-to-approval workflow supports collaborative review before content is published.
Broad import and integration support
Recordings can be imported from over 1,800 platforms or uploaded directly as MP3, WAV, M4A, or MP4 files up to 1 GB. Zapier, Slack, Notion, and Zoom/Riverside integrations allow Castmagic to fit into existing team workflows.
Best for
- Podcast producers or networks who publish regularly and need show notes, transcripts, and social content at scale
- Marketing teams and agencies repurposing webinars, event recordings, or client interviews into multiple content formats
- B2B content teams that record sales calls, customer interviews, or internal meetings and want usable written output from them
- Coaches or consultants who record sessions and want to turn that material into shareable resources, follow-ups, or lead magnets
- Small teams or solo creators who want to reduce manual writing time and maintain a consistent publishing cadence across channels
Worth knowing
- There is no free plan — entry is the $19/month Hobby plan (billed annually, $29 month to month); Starter is $48/month and Team $139/month billed annually, so model your monthly file volume before choosing a tier.
- The solution is built around audio and video input; businesses without a regular recording workflow — podcasts, webinars, meetings, or video content — will find limited use for it.
- AI-generated drafts still typically require a human review pass before publication, particularly for accuracy-sensitive content such as sales proposals or research briefs.
- Teams managing many brands or clients will likely need Team ($139/month billed annually) or Business & Scale (from $699/month) to access full multi-workspace and permission features; lower tiers may be restrictive for agencies.
- Castmagic does not appear to offer deep CMS or publishing integrations beyond Zapier, Slack, and Notion — teams with complex publishing stacks may need to handle final distribution separately.
How Castmagic compares
Castmagic's job is turning recordings into written content. Its nearest neighbours edit the recording itself, cut it into short video, take internal meeting notes, or write from a brief with no recording at all — choose by what you start with and what you need to publish.
vs Descript
Descript edits the recording itself — you cut audio and video by editing the transcript, clean up the sound and strip filler words — from $16 a month. Castmagic leaves the recording alone and writes from it: show notes, blogs, newsletters, captions. A podcast team could use Descript to finish the episode and Castmagic to write everything that promotes it.
vs OpusClip
OpusClip cuts a long video into short captioned clips for TikTok, Shorts and Reels, with reframing, a virality score and a free plan. Castmagic produces written assets from the same recording rather than video. Pick OpusClip if short-form video is your channel; Castmagic if posts, newsletters and show notes are.
vs Otter.ai
Otter.ai joins Zoom, Google Meet and Teams calls and produces transcripts, summaries and action items, from free to $30 per user. Castmagic is built for publishing, turning recordings into content for an audience across one or more brands. If the goal is internal meeting notes rather than marketing assets, Otter.ai is the closer and cheaper fit.
vs Jasper AI
Jasper is a writing platform for marketing teams, at $59 per user a month, that generates on-brand blogs, ads, emails and social posts from prompts and stored brand context. Castmagic starts from a recording instead of a brief. If you publish a podcast or webinar every week, Castmagic mines it; if you rarely record, Jasper is the better writing solution.
Related solutions
Ready to see Castmagic in action?
There is no free plan, so count the recordings you publish each month and the brands you manage before you pick: Hobby is $19, Starter $48 and Team $139 a month (annual). Agencies that need separate client workspaces and approvals should price Team or above.
Heads-up: this is an affiliate link — if you buy through it, new Mantra may earn a commission at no cost to you. It doesn’t change our take.
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