Free plan available

Gladia

Enterprise-grade AI speech-to-text API for multilingual transcription and translation.

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Intro

What is Gladia?

Gladia is an advanced, enterprise-grade AI audio infrastructure that provides cutting-edge automatic speech recognition (ASR), real-time streaming, and audio intelligence. Built on an optimized version of open-source technologies like OpenAI Whisper, the Gladia STT API allows developers to turn unstructured audio data into valuable business knowledge. Featuring their new proprietary model, Whisper-Zero, Gladia AI drastically reduces hallucinations by 99.9% while significantly boosting transcription accuracy compared to standard alternatives like Deepgram. It provides a single API for high-performance gladia 文字起こし (transcription), translation, speaker diarization, and multilingual deep-insight add-ons.

Gladia at a glance
Free, Pro from $0.612/hr211K monthly visitsHas free access
Pricing

Gladia Pricing Plans

Compare Gladia free options, Gladia paid pricing plans, and usage notes before you choose the best way to use this AI tool in 2026.

Free, Pro from $0.612/hr

$0/mo

Perfect for developers, early-stage startups and individual users. Includes 10 hours per month of batch, real-time transcription, and speaker diarization with concurrency and file limitations.

$0.612 per hour

Designed to grow with scaling digital companies. Includes batch transcription, speaker diarization, word-level timestamps, full support for 100+ languages, code-switching, language detection, custom vocabulary, and dual-channel parsing. Live transcription costs an additional $0.144 per hour.

Custom

Custom plan tailored to the modern enterprise. Offers volume discounts, custom data retention, custom geography cloud, on-premise or air-gap hosting, SLAs, and dedicated account manager/support engineers.

Pricing updated:Jun 11, 2026

Features

Gladia AI Features

High-speed asynchronous transcription processing 1 hour of audio in less than 120 secondsReal-time streaming API with ultra-low latency of under 300msWhisper-Zero ASR model designed to eliminate 99.9% of hallucinationsAdvanced speaker diarization, automatic punctuation, casing, and custom vocabularyMultilingual speech-to-text translation supporting code-switching across 99+ languagesFlexible deployment options including Cloud, On-premise, and Air gap environments
Pros & Cons

Gladia Pros and Cons

Pros

  • Proprietary architectural enhancements that lower AI infrastructure costs
  • Highly scalable developer-friendly API compatible with all tech stacks
  • Robust data compliance adhering to GDPR, HIPAA, and SOC Type 2 standards
  • Generous free tier offering 10 hours of transcription per month

Limitations

  • Free plan enforces concurrency limitations and restricts maximum file sizes
  • Advanced add-ons and premium hosting methods are limited to higher pricing tiers

Gladia FAQ

Gladia builds upon the foundation of OpenAI Whisper ASR but optimizes it for production environments. Through their custom model, Whisper-Zero, they deliver a massive technical edge by eliminating 99.9% of hallucinations, reducing processing costs, and enabling live streaming with sub-300ms latency.