ResourcesIntegrationsTranscribers (Speech-to-text)

Gladia

What is Gladia?

Gladia is a state-of-the-art audio transcription and intelligence platform. It provides real-time speech-to-text for audio and video and adds advanced audio-intelligence features so you can turn unstructured audio into actionable insights. It integrates easily and scales so you can focus on building features instead of transcription infrastructure.

Try Gladia on their playground to get a feel for the product!

Why choose Gladia on Vapi for speech-to-text?

Low latency transcription

Gladia delivers low-latency live transcription, often under ~600 ms, for calls and streaming audio, with super-fast partials around ~300 ms for immediate response processing. It provides word-level timestamps and detailed custom vocabulary to power downstream workflows.

Global language coverage

Gladia supports 110+ languages and dialects and robustly handles multilingual and mixed-language audio. It also supports mixed-language and code-switch scenarios for natural conversations and multilingual conversations.

Audio intelligence add-ons

Translation is available in one API call to one or more target languages. Gladia also offers summarization post-call, sentiment analysis, and named-entity recognition in real-time, enabling meeting notes, customer-call insights, and content production workflows on top of transcripts.

API and integrations

Gladia offers telephony compatibility (SIP/VoIP) and noise resistance for live use cases, and supports real-time streaming with low-latency interfaces for platforms and contact centers. It also provides a developer-friendly playground to test and monitor your transcription workflows.

Getting started

  1. Go to the Assistants tab in the left-hand navigation.
  2. Create a new assistant, or select the voice assistant you want to configure.
  3. Open the Transcriber tab in the top navigation (or scroll to the Transcriber module).
  4. In the Provider dropdown, select Gladia.
Watch the Vapi x Gladia demo video to see real-time features in action!

Best practices

  • Region selection: Use the region closest to your users; EU and US options are available for data residency and latency.
  • Custom vocabulary: Add domain-specific terms (product names, acronyms) to improve accuracy.
  • Timestamps: Use word-level timestamps when you need precise analytics or subtitles.
  • Translation: Use built-in translation when you need multilingual outputs from a single stream.

Use cases

  • Voice agents: Real-time transcription, speaker attribution, translation, and post-call summaries.
  • Virtual meetings: Live transcription, speaker attribution, translation, and meeting notes.
  • Customer service / contact centers: Live call transcription, sentiment/keyword extraction, multilingual agent assistance.
  • Sales enablement: Capture names, emails, and details across languages and accents; feed CRMs.
  • Media & content creation: Transcribe/edit audio/video, generate subtitles (SRT/VTT), and translate for global distribution.

Data protection and compliance

Gladia offers enterprise-grade data governance, secure hosting options, and alignment with privacy and compliance frameworks such as GDPR. EU and US regions are available for data residency.