Speech to text
Rythmex: review, pricing, data and alternatives
Rythmex transcribes audio and video files for people preparing transcripts or subtitles. Its editor allows changes to text, timestamps, and speakers, while its API automates transcription. There is no free tier; the first paid plan costs $5 pay as you go. Access and transparency score: 43/100, #14 of 15 in its category.
What is Rythmex?
Rythmex transcribes audio and video files for people preparing transcripts or subtitles. Its editor allows changes to text, timestamps, and speakers, while its API automates transcription.
According to its documentation, Rythmex lets you:
- transcribe audio and video files
- correct text in an editor
- edit timestamps and speakers
- download transcripts and subtitles
- automate transcription with an API
We file it under Speech to text, the category of tools to transcribe audio to text, and it also overlaps with subtitles and dubbing and aI translation. The category lists 15 verified tools on this site.
The service launched in 2022, which gives it some track record.
Who is it for?
It is mostly useful to these profiles: podcasters, video creators, students, and customer support. The need it covers is simple to state: transcribe audio to text.
Rythmex is a good candidate if:
- you plan to connect it to your tools or automations through its API
Before deciding, run a trial on a real task and measure the time saved: it is the only criterion that really counts.
How much does Rythmex cost?
Pricing model: paid. No permanent free plan is offered.
The first paid plan costs $5 pay as you go (One hour purchased individually according to the pricing section; the FAQ on the same page also mentions USD 15/hour outside Premium), according to the pricing page, checked on October 24, 2026.
To estimate what the same work would cost done directly with an AI model, use our API price calculator. Prices change often: always check the official site before subscribing.
Data and privacy
The publisher does not clearly state where data is hosted. Assume your content may leave your region.
For professional use, check that a data processing agreement (DPA) is offered, and do not send customers' personal data or confidential documents without one.
Exporting your content: DOCX, TXT, SRT, PDF. Being able to get your data back makes switching tools easier later.
Three habits apply to every AI tool:
- turn off the use of your content for training if the option exists
- use a work account separate from your personal account
- review everything the tool produces before publishing or sending it
Platforms, languages and API
Rythmex runs on: web browser and API.
Interface languages: English.
A public API lets you call it from your own programs or an automation tool, and plug it into an AI agent.
How we scored it
Our 43/100 score does not judge output quality: it measures what can be publicly verified about access to the tool, its openness and how far the publisher can be trusted.
| Criterion | Points | What counts |
|---|---|---|
| Access | 10/30 | free tier, published price, French interface |
| Openness | 20/30 | API, data export, open code |
| Trust | 13/40 | identified publisher, declared hosting, age, presence in reference lists |
The full calculation is explained on our method page.
Comparison with alternatives
Rythmex against other tools in the speech to text category:
| Tool | Free | Entry price | API | Score |
|---|---|---|---|---|
| Rythmex | No | $5 pay as you go | Yes | 43 |
| Whisper | Yes | $0.01 pay as you go | Yes | 95 |
| AssemblyAI | Yes | $0.15 pay as you go | Yes | 78 |
| Rev | Yes | $0.25 pay as you go | Yes | 75 |
| Wispr Flow | Yes | $12 per month | Yes | 73 |
| Vibe | Yes | not published | Yes | 68 |
| Deepgram | Yes | $0 pay as you go | Yes | 65 |
| HappyScribe | Yes | £102 per year | Yes | 65 |
Verdict
Rythmex publishes little verifiable information: look at the better-scored alternatives first.
Strengths
- Public API
- Established since 2022
Limitations
- No free tier
- Data hosting not disclosed
Avoid if…
- You handle sensitive personal data without a processing agreement
Alternatives
- Whisperfree tier
- AssemblyAIfree tier
- Revfree tier
- Wispr Flowfree tier
- Vibefree tier
- Deepgramfree tier
Categories and jobs
Learn more
Frequently asked questions
Is Rythmex free?
No, there is no permanent free plan. The first paid plan costs $5 pay as you go.
Where is Rythmex data stored?
The publisher does not clearly say so in its public documentation.
Does Rythmex have an API?
Yes, a public API is documented.
What are the alternatives to Rythmex?
In the same category: Whisper, AssemblyAI, Rev, and Wispr Flow.
Rythmex or Whisper: which one to choose?
Whisper has a free tier, Rythmex does not, Rythmex starts at $5 pay as you go, Whisper at $0.01 pay as you go, and our score is 43/100 for Rythmex and 95/100 for Whisper. Try both on the same task before paying.
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Neutrality. No affiliate links. No vendor pays to be reviewed, rated or ranked. Reviews are directed by François Chollet, neutral and factual, and every data point is dated and sourced. How we score