Gladia

What if your audio data could reliably power every downstream workflow?

RecommendedGladia provides a robust, compliant, and highly accurate audio infrastructure, particularly strong for multilingual and real-world conversational audio use cases.

Gladia provides state-of-the-art Speech-to-Text (STT) APIs for both real-time and asynchronous transcription, designed for noisy, fast-paced, and conversational audio. It offers built-in audio intelligence features like speaker diarization, sentiment analysis, and named entity recognition, all accessible through a single API.

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Key Features:
  • Real-time and Batch Speech-to-Text APIs with <300ms latency for real-time.
  • Solaria-3 model optimized for noisy, fast-paced, and conversational audio with 9.6% WER on real English audio.
  • 100+ languages supported with accent-sensitive automatic detection and native code-switching.
  • Built-in audio intelligence: speaker diarization, sentiment analysis, PII redaction, named entity recognition, summarization, and Audio-to-LLM pipeline.
  • Enterprise-grade security and compliance: SOC 2 Type II, GDPR, HIPAA, ISO 27001, with EU data residency and no training on customer audio by default.
Pros
  • Developers building voice-first products requiring high accuracy on conversational audio.
  • Enterprises needing robust, compliant audio transcription for contact centers or sales intelligence.
  • Teams working with multilingual audio who need seamless language detection and code-switching.
Cons
  • While Solaria-3 is generally superior, Solaria-1 might be better for very specific use cases like formal parliamentary speech or clean read-speech.
  • The pricing model is usage-based, which might require careful monitoring for cost optimization in high-volume scenarios.
  • Some advanced features like on-premise deployment are available only for Enterprise plans.
Pricing
freemiumFree tier
Starting at:$0.61/hr (Async)
Free tier:10 hours of transcription per month
Plans
  • Starter: Async at $0.61/hr, Real-time at $0.75/hr (10h free monthly, 30 real-time concurrent requests, 25 async concurrent requests)
  • Growth: Async as low as $0.20/hr, Real-time as low as $0.25/hr (custom volume discounts, flexible concurrent requests)
  • Enterprise: Custom pricing (unlimited concurrent requests, custom hosting, premium support, SLAs)
Trial:10 hours free monthly, no credit card required for signup
Categories:
Audio & SpeechAI InfrastructureBusiness & Enterprise
Tags:
speech-to-texttranscriptionreal-time audiomultilingualaudio intelligencespeaker diarizationsentiment analysisnamed entity recognitionPII redactioncontact center AIsales intelligencemeeting assistantscomplianceGDPRHIPAASOC 2
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Quick Decision
Try if: You need highly accurate, multilingual speech-to-text with advanced audio intelligence features and strong compliance for production environments, especially for conversational or noisy audio.
Skip if: Your primary need is for extremely clean, formal read-speech in languages not optimized by Solaria-3, or if you require an on-premise solution for smaller-scale projects where the Enterprise plan might be overkill.
Not for: Users primarily needing transcription for formal parliamentary speech or clean read-speech, where Solaria-1 might be slightly more accurate.; Individuals with very low audio processing needs who might find the free tier sufficient but not require advanced features.
Trust Signals

  • Users

    300K+ Developers

  • Team Size

    medium

  • Funding

    $16M in Series A funding
Compliance
SOC 2 Type IIGDPRHIPAAISO 27001
Notable Customers
AttentionAircallRecallVEEDLivestorm
Tech Details
Platforms
apiweb
Integrations
Python SDKNode.js SDKPipecatLivekitVapiRecallMeeting BaaSTwilioVideoSDKComposioZapierMaken8nZoomGMeetMicrosoft Teams

  • AI Model

    Solaria-3
Open Source
No
Support
Channels
emailDiscordHelp centerdedicated Slack (Enterprise)
Company

  • Name

    Gladia

  • Location

    EU (Headquartered)

Gladia is an AI audio infrastructure company focused on delivering state-of-the-art Speech-to-Text and audio intelligence solutions. Their mission is to provide a reliable audio infrastructure that gives voice products true intelligence across every conversation.

FAQ

Can I try Gladia for free?

Yes, Gladia offers a free tier plan that includes up to 10 hours of transcription free of charge each month. You can sign up on their website to get started.

How does Gladia compare to other Speech-to-Text providers?

Gladia benchmarks its Solaria-3 model against leading providers like Deepgram, AssemblyAI, and ElevenLabs, often ranking #1 in accuracy for real customer audio, business calls, and conversational speech, especially for English and European languages. They provide detailed benchmark results on their website.

Does Gladia train on customer data?

No, Gladia explicitly states that they never train on customer data by default. For paid plans, a Zero Data Retention policy is available, and any exceptions for model training require explicit agreement.

What are the pricing options for Gladia's services?

Gladia offers a flexible pay-as-you-go Starter plan, a Growth plan with lower unit pricing for committed usage, and an Enterprise plan for custom solutions, fine-tuning, and dedicated support. Billing options include monthly or annually.

What compliance certifications does Gladia hold?

Gladia is GDPR, HIPAA, AICPA SOC 2 Type II, and ISO 27001 compliant, ensuring enterprise-grade security and data protection. They also offer EU data residency.

Use Cases
  • Developers building voice-first products requiring high accuracy on conversational audio.
  • Enterprises needing robust, compliant audio transcription for contact centers or sales intelligence.
  • Teams working with multilingual audio who need seamless language detection and code-switching.
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