Starter
$0.61 async; $0.75 real-time
per audio hour
Pay-as-you-go processing with 10 free hours per month. Audio intelligence features are included according to the current plan terms.
Check current pricing →G
Gladia
Gladia is an audio AI API for real-time and pre-recorded transcription, translation, diarization, summarization and conversation analysis.
Editorial overview
Aggregated Overview
Gladia provides pre-recorded and real-time APIs, multilingual transcription, code switching, diarization, translation, summaries, entity extraction, sentiment analysis and SDKs. G2 reviewers generally praise accuracy, speed and API usability, while some note documentation, latency and high-volume cost concerns.
This profile combines documented product information and independent evidence where available. It is not a hands-on test unless TechZella explicitly identifies one.
Overview
Gladia is an audio AI infrastructure service for developers building voice-enabled products. Its API processes live streams and recorded audio or video for transcription and downstream language analysis.
The platform supports more than 100 languages and includes automatic language detection and code switching. Typical applications include meeting assistants, contact-center systems, sales tools, live captions and voice agents.
Gladia exposes REST endpoints for pre-recorded jobs and WebSocket connectivity for live transcription. It also provides JavaScript and Python SDKs, plus integrations with voice and meeting infrastructure providers.
Gladia Decision Snapshot
A quick way to understand who this product may suit, where its limits matter, and which facts are most relevant before you compare alternatives.
Platforms
JavaScript SDK, Python SDK, REST API, Web, WebSocket API
TechZella assessment
8.5/10
Gladia Pros & Cons
Pros
- Real-time and batch transcription are available through one API.
- Supports multilingual transcription and code switching.
- Provides transcription enrichment features beyond speech recognition.
- Offers official JavaScript and Python SDKs.
- Has integrations for voice, meetings, telephony and automation workflows.
Cons
- Designed mainly for developers rather than nontechnical end users.
- Growth pricing depends on upfront volume commitments.
- Starter data may be used for model training by default.
- Pre-recorded jobs have a documented 135-minute duration limit.
- Independent review coverage is limited compared with larger cloud providers.
Gladia Pricing & Plans
Growth
From $0.20 async; from $0.25 real-time
per audio hour
Volume-based pricing with upfront usage commitments. Published rates vary by commitment level.
Check current pricing →Enterprise
Custom
annual or contracted
Custom pricing with enterprise support, deployment, data retention and data residency options.
Check current pricing →Pricing may change. Verify current plans on the vendor's website.
Gladia Competitors & Alternatives
Compare similar products directly, then see which alternatives may make more sense when your requirements differ.
Direct competitors
These products address broadly similar requirements. The descriptions focus on documented reasons a buyer might compare them with Gladia.
Gladia Features
Transcription
- Pre-recorded audio and video transcription
- Real-time WebSocket transcription
- Automatic language detection
- Multilingual transcription
- Language code switching
- Speaker diarization
- Custom vocabulary
- Custom spelling
- Punctuation enhancement
Audio Intelligence
- Translation
- Summarization
- Named entity recognition
- Text-based sentiment analysis
- Audio-to-LLM prompts
- PII redaction
- Subtitle generation
Developer Tools
- REST API
- WebSocket API
- JavaScript and TypeScript SDK
- Python SDK
- Callbacks and webhooks
- Audio URL or file upload workflows
Integrations
- Pipecat
- LiveKit
- Vapi
- Recall
- MeetingBaaS
- Twilio
- VideoSDK
- Composio
- Zapier
- Make
- n8n
Gladia Specifications
| Primary delivery | Cloud API |
|---|---|
| API styles | REST and WebSocket |
| SDKs | JavaScript/TypeScript and Python |
| Processing modes | Pre-recorded and real-time |
| Language support | 100+ languages |
| Pre-recorded request limit | 135 minutes per request |
| Real-time session limit | 3 hours per WebSocket session |
| Free trial | 10 hours per month on Starter |
| Billing | Per audio hour |
| Headquarters | New York, United States |
| Company founded | 2022 |
Our evidence-based assessment
TechZella Score
A proprietary editorial score based on product capabilities, usability, value, performance, support and user sentiment evidence.
8.5/10Moderate confidence
Gladia provides pre-recorded and real-time APIs, multilingual transcription, code switching, diarization, translation, summaries, entity extraction, sentiment analysis and SDKs. G2 reviewers generally praise accuracy, speed and API usability, while some note documentation, latency and high-volume cost concerns.
Methodology v1.0. The assessment weighs feature coverage (25%), ease of use (15%), value for money (20%), performance (15%), support (10%) and user sentiment (15%), using researched product evidence and verified review evidence where available. It is a TechZella editorial assessment, not a direct user-review average.
Gladia FAQs
Answers begin with the clearest available response, followed by the context that helps you act on it.
Does Gladia offer a free trial?
Yes. The Starter tier includes 10 free hours of audio processing per month.
Does Gladia provide an API?
Yes. Gladia provides REST APIs for pre-recorded transcription and a WebSocket API for real-time transcription.
Which programming languages have official SDKs?
Gladia documents JavaScript or TypeScript and Python SDKs.
Does Gladia support integrations?
Yes. Documented partners include LiveKit, Pipecat, Vapi, Recall, MeetingBaaS, Twilio, VideoSDK, Composio, Zapier, Make and n8n.
What file types does Gladia accept?
Supported formats include AAC, AC3, FLAC, M4A, MP3, OGG, Opus and WAV, plus common video formats such as MP4, MOV, AVI and WebM-compatible containers.
Can Gladia identify speakers?
Yes. Speaker diarization is available for pre-recorded transcription workflows.
Does Gladia support live transcription?
Yes. The live API uses WebSocket streaming and returns transcript events during the session.
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