OBS Studio with AI Caption plugins
by OBS Project + community plugins
OBS hosts third-party AI live-caption plugins (e.g. obs-localvocal) for streamers.
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TL;DR
Best for twitch / YouTube streamers who want live on-screen captions without a paid service. Pricing: free.
Category
Desktop apps
License
—
Stars
—
Last push
—
Pricing
free
Platforms
macOS, Windows, Linux
What it is
OBS Studio is the free streaming workhorse. Plugins such as obs-localvocal (Whisper-cpp based) add live AI captions on-stream; Closed Caption Generator plugins route to Twitch CC tracks. Streamer-side speech surface.
Best for: Twitch / YouTube streamers who want live on-screen captions without a paid service.
Watch out for: Caption accuracy depends on chosen plugin + local model; CPU/GPU load grows with model size.
Watch out for: Caption accuracy depends on chosen plugin + local model; CPU/GPU load grows with model size.
Install / use
Go to OBS Studio with AI Caption plugins obsproject.comFeatures
| Speaker diarization | No |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | None |
| HIPAA eligible | No |
OBS Studio with AI Caption plugins vs Whipscribe
| Feature | OBS Studio with AI Caption plugins | Whipscribe |
|---|---|---|
| Category | Desktop apps | Transcription APIs |
| Pricing | free | $4–$24 one-time packs (credits never expire) · $2 single unlock · 60 min free on signup |
| Speaker diarization | — | Yes |
| Word timestamps | — | Yes |
| Streaming | — | No |
| Languages | — | 99 |
| Platforms | macOS, Windows, Linux | Web, API, MCP |
Alternatives to OBS Studio with AI Caption plugins
Whipscribe is a managed faster-whisper + whisperX service. If you want transcripts without running infrastructure, paste a URL or drop a file in the form below — you'll have a transcript in seconds.