Speech to text
Vietnamese speech to text
Vietnamese transcripts for recordings and live audio. Giggy transcribes Vietnamese recordings for $0.04 an hour on Fast and live Vietnamese audio for $0.08 an hour on Streaming.
Speech to text: what you pay
| Provider | Mode or model | USD per audio hour |
|---|---|---|
| Giggy | Fast | $0.040 |
| AssemblyAI | Universal-2 | $0.150 |
| OpenAI | gpt-4o-mini-transcribe | $0.180 |
| Google Cloud | Speech-to-Text V2 · Dynamic batch | $0.180 |
| Azure | Speech · Batch transcription | $0.180 |
| ElevenLabs | Scribe v3 | $0.200 |
| AssemblyAI | Universal-3.5 Pro | $0.210 |
| Deepgram | Nova-3 · Pre-recorded | $0.258 |
| Deepgram | Nova-3 Multilingual · Pre-recorded | $0.312 |
| OpenAI | Whisper / gpt-4o-transcribe | $0.360 |
| Amazon | Transcribe · Standard batch | $0.360 |
| Provider | Mode or model | USD per audio hour |
|---|---|---|
| Giggy | Streaming | $0.080 |
| Soniox | stt-rt-v5 · Streaming (est.) | $0.120 |
| ElevenLabs | Scribe v2 Realtime | $0.220 |
| Speechmatics | Linden-1 · Agent STT | $0.300 |
| OpenAI | GPT-4o Transcribe (est.) | $0.360 |
| Speechmatics | Real-time Enhanced | $0.430 |
| AssemblyAI | Universal-3.6 Pro Realtime | $0.450 |
| Deepgram | Nova-3 · English streaming | $0.462 |
| Deepgram | Flux Multilingual · Streaming | $0.468 |
| Google Cloud | Gemini 3.5 Transcribe Live (est.) | $0.536 |
| Amazon | Transcribe · Standard Streaming | $0.600 |
| Google Cloud | Chirp 3 · Streaming | $0.960 |
| Azure | Speech · Standard realtime | $1.00 |
| OpenAI | GPT-Live-Transcribe | $1.02 |
All recorded-audio prices checked November 11, 2026 on each provider's pricing page or official price API. ElevenLabs, OpenAI, Deepgram, Google, Amazon, Azure and AssemblyAI checked November 11, 2026; Speechmatics October 8; Soniox token-based estimate October 20.
Vietnamese accuracy, published
Error rate on the FLEURS Vietnamese test set (857 recordings). Lower is better.
| Model | Error rate |
|---|---|
| Gemini 3.5 Transcribe Live (est.) | 5.2% |
| Giggy Streaming | 7.9% |
| Real-time Enhanced | 8.6% |
| Scribe v2 Realtime | 8.8% |
| Transcribe · Standard Streaming | 9.3% |
| Speech · Standard realtime | 9.4% |
| Universal-3.6 Pro Realtime | 13.9% |
| GPT-4o Transcribe (est.) | 18.7% |
Transcribe Vietnamese in three steps
Upload or stream Vietnamese audio
Upload a recording, or open a WebSocket for live Vietnamese audio from a call, meeting or microphone.
Choose Batch, Fast or Streaming
Batch transcribes recordings up to 25 minutes in a shared queue at no cost. Fast transcribes up to 12 hours with priority. Streaming returns text while people speak.
Get the transcript
Batch and Fast return a transcript JSON result. Streaming sends cumulative Vietnamese text as it is recognized, so the latest text always replaces the previous one.
Built for a wide range of uses
Calls and support
Transcribe Vietnamese customer calls for quality review, search and summaries.
Meetings and interviews
Turn Vietnamese meetings and interviews into text you can quote, search and share.
Podcasts and video
Create Vietnamese transcripts for podcasts and videos to edit, publish and caption.
Voice agents
Give Vietnamese voice agents live speech recognition over a WebSocket.
Lectures and courses
Turn recorded Vietnamese lessons into scripts and study notes.
Voice notes
Convert Vietnamese voice notes and dictation into text.
Priced per hour, without a subscription
Fast costs $0.04 and Streaming $0.08 per audio hour with Pro, Studio or Scale credits, billed on validated input duration. Credits are prepaid, shared across speech to text, text to speech and voice creation, and expire one calendar year after purchase.
Build Vietnamese transcription into your product
Send Vietnamese audio to /v1/audio/transcriptions with your API key, or use the Python and JavaScript SDKs or the Giggy MCP server. Giggy detects Vietnamese automatically, or you can set the language explicitly for the most consistent results.
Frequently asked questions
What is Vietnamese speech to text?
Speech to text turns spoken Vietnamese audio into written text. Giggy transcribes Vietnamese recordings and live audio in the app or through the API.
How much does Vietnamese speech to text cost?
Giggy Fast costs $0.04 per input audio hour and Streaming $0.08, with Pro, Studio or Scale credits. Batch transcription is free for recordings up to 25 minutes, subject to request and queue limits.
Does Giggy detect Vietnamese automatically?
Yes. Giggy detects the spoken language automatically. You can also set the language in the API request when you already know it.
Can Giggy transcribe live Vietnamese audio?
Yes. Live Vietnamese speech to text runs over a WebSocket at /v1/audio/transcriptions. Paid API sessions accept up to 12 hours of live audio.
How long can a Vietnamese recording be?
Batch accepts recordings up to 25 minutes. Fast and uploaded-recording Streaming accept up to 12 hours.