Can AI replace Captions?
A consolation build is possible, but the paid product's decisive value sits outside a solo rebuild. For Captions, caption and reframe user-owned short videos with local models. The hard boundary is proprietary editing models, mobile capture, avatars, cloud rendering, and creator workflow, plus models, compute, rights, and safety operations.
01What it costs
Checked Aug 12, 2026 · source: captions.ai.
| Plan | Monthly | Billed yearly | What you get |
|---|---|---|---|
| Free | Free | Free | 0 AI-usage credits; 1 caption template; basic editing/captions in 100+ languages. |
| Max | $24.99 | — | 500 AI credits/month. |
| Scale 1x | $69.99 | — | 1,400 AI credits/month. |
| Scale 2x | $139.99 | — | 2,800 AI credits/month. |
| Scale 4x | $279.99 | — | 5,600 AI credits/month. |
| Enterprise | — | — | Custom seats, credit volume, and bulk discount. |
Hidden costs: Unused paid credits roll over only until the balance reaches 3× the monthly allowance. Upgrades are prorated; downgrades apply at cycle end. Web/Android pricing can differ from the published iOS figures.
02Could AI build it for you?
The core job: Caption and reframe user-owned short videos using a local model, label any synthetic media clearly, and retain provenance for every output.
What a working version needs:
- local TTS model
- ffmpeg
- GPU recommended
- voices the user has rights and consent to use
Editorial comparison targets the Pro plan and a clearly labeled local synthetic-media tool DIY substitute. Recheck price before merge.
03What you'd give up
- proprietary editing models, mobile capture, avatars, cloud rendering, and creator workflow
- frontier voice or avatar model
- licensed voice catalog
- real-time rendering fleet
- moderation, consent verification, and enterprise rights
People still pay for Captions because customers pay for output quality, production speed, licensed voices, consent workflows, and a provider that carries the operational risk. The recurring cost buys model licensing, consent records, impersonation risk, watermarking, GPU queues, media storage, abuse response, and rapid model changes, not just the visible interface.
04The build prompt
Read the verdict first: this one is hard to get right.
The complete build prompt, plus 11 step-by-step prompts from research to launch, a design system file, a page-by-page spec, the data model and a launch checklist.
Get the Build Kit · $9 →One-time payment. Delivered on screen and by email.
05Free open-source starting points
- Piper: Active community continuation of the fast local Piper text-to-speech engine.
Prices change; confirm on the vendor's site before you decide.
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