Amphion
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The first 20 minutes of any recording are transcribed free: a recording up to 20 minutes transcribes in full, a longer one is previewed, and a pack from $6 (500 minutes) transcribes the rest and opens every export, and credits never expire.
Open-source toolkit for audio, music, and speech generation.
Best for research teams running multi-task audio-generation experiments — TTS, singing, vocoder, source separation. Pricing: free (MIT).
What it is
Amphion is a research-grade toolkit covering TTS, singing-voice synthesis, voice conversion, and audio generation. MIT-licensed. Used as a benchmark harness for new architectures. Consent posture: synthetic-only in default recipes.
Watch out for: Heavy framework; primarily a research harness rather than a production library.
Install / use
git clone https://github.com/open-mmlab/AmphionWhat people actually do with Amphion-style transcription
The tool is the means. These are the jobs — each one priced at published rates, each one wired up on its own page.
Features
| Speaker diarization | No |
| Word-level timestamps | No |
| Streaming / real-time | No |
| Languages supported | 10 |
| HIPAA eligible | No |
Links
Amphion vs Whipscribe
| Feature | Amphion | Whipscribe |
|---|---|---|
| Category | Open source | Transcription APIs |
| Pricing | free (MIT) | $6–$24 one-time packs (credits never expire) · first 20 minutes free |
| Speaker identification | — | Named in the summary, key quotes and chapters |
| Word timestamps | — | Yes |
| Streaming | — | No |
| Languages | 10 | 99 |
| Platforms | Linux | Web, API, MCP |
Alternatives to Amphion
Frequently asked about Amphion
Is Amphion free?
Yes. Amphion is free and open source (free (MIT)).
Does Amphion work on Mac, Windows and Linux?
Amphion runs on Linux. It is not listed for other platforms; check the vendor for anything beyond Linux.
How do I install Amphion?
Clone and run it from source: `git clone https://github.com/open-mmlab/Amphion`. Expect to install its dependencies yourself — the README has the exact steps per OS.
How many languages does Amphion support?
Amphion lists 10 languages.
Does Amphion identify different speakers?
No. Amphion does not label speakers; a conversation comes back as one continuous text. If you need speaker labels, that is a separate tool or a different service.
Does Amphion give word-level timestamps?
No — Amphion produces segment or sentence timing only, so subtitle cues can land mid-word.
Can Amphion transcribe live audio?
No — Amphion works on finished files, not a live stream.
Is Amphion HIPAA compliant?
Amphion does not claim HIPAA compliance. For PHI, run it on infrastructure you control or choose a service that will sign a BAA.
What are the limitations of Amphion?
Heavy framework; primarily a research harness rather than a production library.
Who is Amphion best for?
Research teams running multi-task audio-generation experiments — TTS, singing, vocoder, source separation.
Does Amphion run offline?
Amphion runs on your own machine — it is open source, so nothing leaves the computer unless you configure it to.
Can I use Amphion in the browser?
No — Amphion is a Linux application, not a web app. You install it rather than sign in to it.
Where is the Amphion source code?
On GitHub at github.com/open-mmlab/Amphion. It is maintained by Open Multimedia AI Lab.
What kind of tool is Amphion?
In this directory Amphion is filed under tts as a open-source tool.
What are the alternatives to Amphion?
There is a side-by-side page at /tools/amphion-alternatives comparing Amphion with the closest tools in the same category on price, platform and features.
Whipscribe is a hosted transcription 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.
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