Whisper Turbo Speech to Text — Fast AI Transcription API ($0.60 per audio hour)

Transcribe speech to text with Whisper large-v3-turbo — one flat all-inclusive price, no subscriptions, no hidden platform fees.

Built for AI agents, LLM pipelines, n8n / Zapier / Make automations, media teams and researchers. Pay only for successful, non-empty transcripts.

Table of contents

• What can it do
• Who uses it
• Input fields
• How to use
• Output example
• Pricing
• Integrations and API
• Tips
• FAQ
• Related searches
• Disclaimer
• 中文说明

What can it do

✅ Transcribe an audio file (PCM WAV, up to 25 MiB / 10 minutes) into text ✅ Whisper large-v3-turbo model — fast and accurate ✅ 15 selectable languages + fully automatic language detection ✅ Word/sentence-level segments with timestamps ✅ One flat all-inclusive price per started audio minute — no start fee, no platform surcharge ✅ Charges only for a successful, non-empty transcript — failed runs cost nothing ✅ Works with AI agents and LLM tools via standardized input/output

Who uses it

• AI agent developers feeding meeting or voice-note transcripts into LLMs
• Automation builders on n8n, Zapier, Make archiving podcasts and calls
• Journalists and researchers transcribing interviews
• Content teams generating subtitles and drafts
• Accessibility teams captioning audio

Input fields

Field	Type	Required	Description
audioUrl	string	✅	Direct public HTTPS URL to an uncompressed PCM WAV file. No redirects, no credentials. Maximum 25 MiB and 600 seconds. Billing counts started minutes of the decoded clip ($0.01 per started minute, minimum one block).
language	select	❌	auto (default) detects automatically, or force one of: en, tr, de, fr, es, it, pt, ja, ko, ar, ru, uk, nl, pl.

How to use

1. Host your WAV anywhere public (cloud storage, your server, or our free soundupload.tr.foxtools.de upload page) and copy the direct HTTPS link.
2. Paste the link into audioUrl.
3. Set the language or leave auto.
4. Run — the transcript, segments and billing details appear in the Output tab and dataset.

Input example

{
  "audioUrl": "https://example.com/interview.wav",
  "language": "en"
}

Output example

Real run output (abridged):

{
  "ok": true,
  "kind": "stt",
  "language": "en",
  "text": "Thanks for joining. Today we are talking about speech to text.",
  "duration": 63.8,
  "segments": [
    { "start": 0.0, "end": 2.4, "text": "Thanks for joining." }
  ],
  "billingUnit": "audio-minute",
  "billingQuantity": 63.8,
  "billingQuantityUnit": "audio-seconds",
  "billingCount": 2,
  "billingPriceUsdPerBlock": 0.01,
  "totalChargeUsd": 0.02,
  "billingIsAllInclusive": true
}

Pricing

$0.01 per started audio minute — all-inclusive.

The math, shown plainly:

Audio length	Blocks (ceil(seconds/60))	Cost
1–60 s	1	$0.01
61–120 s	2	$0.02
10 min (max)	10	$0.10
60 min (6 runs)	60	$0.60

That equals $0.60 per audio hour — far below most major cloud transcription APIs. One price covers inference, Apify platform usage and delivery. No separate start fee. Minutes are charged only for a successful, non-empty transcript; failed or empty runs cost $0.

Integrations and API

Sync run (get dataset items directly):

curl -X POST "https://api.apify.com/v2/acts/myagizm~whisper-turbo-speech-to-text/run-sync-get-dataset-items?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"audioUrl":"https://example.com/interview.wav","language":"en"}'

Async run:

curl -X POST "https://api.apify.com/v2/acts/myagizm~whisper-turbo-speech-to-text/runs?token=YOUR_APIFY_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"audioUrl":"https://example.com/meeting.wav"}'

n8n / Zapier / Make: use the Apify node, pick this actor, map your URL field to audioUrl.

Tips

💡 Use 16 kHz mono PCM WAV for the best speed/accuracy balance. 💡 auto language detection is strong — set a language only for short or noisy clips. 💡 For clips longer than 10 minutes, split them and run per chunk. 💡 Segments include timestamps — ideal for subtitles.

FAQ

Q: Which formats are accepted? Uncompressed PCM WAV only (max 25 MiB, 600 s). Redirects, credentials and compressed containers are rejected.

Q: Where can I host my audio? Any public HTTPS direct link. Easiest way: our free upload page at soundupload.tr.foxtools.de — upload your WAV (up to 5 minutes per clip), copy the direct link it gives you, and paste it into audioUrl. No account needed.

Q: What are the upload limits on soundupload? Per clip: 5 minutes / 25 MiB. Per IP: up to 5 hours of audio in any 10-minute window, up to 24 hours per day. When you reach 80% of a quota the page shows a warning. Need more? Email info@metanetsoft.com to have your IP whitelisted (limits removed for whitelisted IPs).

Q: Do failed runs cost money? No. Charges apply only to a successful, non-empty transcript.

Q: How accurate is it? Whisper large-v3-turbo is one of the strongest open transcription models; accuracy depends on audio quality.

Q: Which languages? Auto-detect plus 15 forced options: en, tr, de, fr, es, it, pt, ja, ko, ar, ru, uk, nl, pl.

Q: Do I get timestamps? Yes — every run returns timestamped segments.

Q: Is my audio stored? The actor fetches your URL, transcribes and returns text. The download URL you provide is your own storage.

Q: Can I transcribe phone calls? Yes, if you can export them as PCM WAV within the size and duration limits.

Related searches

whisper api · speech to text api · transcription api · whisper turbo · cheap transcription api · audio to text · podcast transcription · interview transcription · turkish speech to text · german transcription api · stt for n8n · stt for zapier · ai transcription · openai whisper alternative

Disclaimer

Transcription quality depends on your source audio. We do not claim accuracy equivalence with any third-party service.

中文说明

Whisper Turbo 语音转文字 — $0.60 / 小时音频

使用 Whisper large-v3-turbo 转录语音 — 一个全包价，无订阅、无隐藏费用。

✅ PCM WAV 输入，最大 25 MiB / 10 分钟 ✅ 自动语言检测 + 15 种可指定语言 ✅ 带时间戳的分段结果 ✅ 计费：每开始的一分钟 $0.01，失败不收费

输入字段

字段	类型	必填	说明
audioUrl	string	✅	公开 HTTPS 直链 PCM WAV
language	select	❌	auto 或指定语言

计费示例

音频长度	块数	费用
1–60 秒	1	$0.01
61–120 秒	2	$0.02
60 分钟	60	$0.60

相关搜索

语音转文字 API · Whisper API · 便宜转录 API · 播客转录 · 土耳其语转写 · n8n 语音转文字