Gladia provides a speech-to-text and audio intelligence API, powering companies with transcription, translation, and insights powered by best-in-class generative AI models.
Gladia's core product is an enterprise-grade audio intelligence API. The API is distinguished by exceptional accuracy and speed of transcription, available in both real-time and asynchronous versions.
The company's latest hybrid ASR system, Whisper-Zero, is based on an enhanced and optimized OpenAI's Whisper. Whisper-Zero eliminates up to 99% of hallucinations from transcripts, improves speech recognition across languages and accents, and supports advanced speech AI features in 99 languages.
In addition to core transcription, Gladia's develops a versatile Audio LLM features to help companies to retrieve and leverage actionable insights from their audio, including speaker separation, summarization, NER, chapterization, sentiment analysis, and more.
Highlights
Accuracy: Highly accurate audio and video real-time and asynchronous transcription for real-life business use cases, available in 99 languages.
Audio LLM features: A suite of audio intelligence features to derive the most relevant insights from your audio data.
Privacy: Full compliance with key EU and US privacy regulations, with zero-retention available on demand.
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
This listing uses one usage-based pricing dimension. You pay per hour of audio transcribed, and you are billed only for the hours you actually use. There are no fixed tiers or instance sizes to choose from. Costs scale directly with your transcription volume: more hours processed means more hours billed. This single-rate structure covers your transcription usage, so you can start small and grow without committing to a set quantity upfront.
Top-of-mind questions for buyers
What counts as one hour for billing purposes?
One hour equals one hour of audio processed through transcription. You are billed by the length of the audio you send, not by wall-clock time. Both pre-recorded (async) and live (real-time) transcription meter the audio duration, and the count grows as you process more recordings or live sessions.
Do audio intelligence features like diarization or translation add extra per-hour cost?
No. Speaker diarization, translation, named entity recognition, and summaries run on top of transcription in the same request. You pay the single per-hour transcription rate and enable each feature by toggling a parameter. There is no separate per-feature charge added to your hourly usage.
What happens if I exceed my usage limit?
Gladia sets rate limits on calls per hour and total hours transcribed, based on your tier. If you hit those limits, you contact the sales team to raise your allowance. Billing runs on a prepaid credit wallet, so you top up or set auto top-up to keep processing.
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Vendor refund policy
Refund is supported at Gladia, please contact sales@gladia.io.
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Fast, Accurate Speech-to-Text with a Developer-Friendly API
Reviewed on Jul 16, 2026
Review provided by G2
What do you like best about the product?
What I like most about Gladia is its high-quality speech recognition API and developer-friendly integration. It makes it easy to build applications that require accurate speech-to-text transcription, speaker recognition, and audio analysis without managing complex machine learning models. Fast and accurate speech-to-text transcription. Support for multiple languages and accents. Speaker diarization and audio intelligence features. Simple REST API that's easy to integrate into applications. Rich metadata, including timestamps and structured transcription output. For me, the most valuable feature is the API-first approach. It allows me to quickly integrate transcription capabilities into applications and automate audio processing without worrying about the underlying AI infrastructure. The biggest benefit is productivity. Gladia simplifies speech processing, reduces development time, and enables me to build voice-enabled applications and transcription workflows much faster than developing a solution from scratch.
What do you dislike about the product?
The biggest drawback is handling domain-specific vocabulary. While Gladia performs well on general conversations, recordings that include technical terminology or industry-specific language often need some post-processing to achieve the desired accuracy. Transcription accuracy can decrease for noisy recordings or conversations with multiple overlapping speakers. Technical jargon, acronyms, and product-specific terms sometimes require manual correction.
What problems is the product solving and how is that benefiting you?
Gladia solves the problem of converting audio into structured, searchable, and actionable data. Instead of building and maintaining a speech recognition pipeline from scratch, I can use Gladia's APIs to transcribe, analyze, and process audio with minimal development effort. Automates speech-to-text transcription for audio and video files. Supports multilingual transcription and speaker diarization. Extracts timestamps and structured metadata for easier analysis. Simplifies integration of speech AI into applications through APIs. Reduces the time and infrastructure needed to build voice-enabled solutions. In my day-to-day work, I use Gladia to process meeting recordings, customer conversations, and voice data for AI-powered applications. The structured transcripts can then be summarized, searched, or used in downstream workflows, making it easier to analyze conversations and extract useful information. The biggest benefit is productivity. Gladia eliminates the complexity of developing speech recognition systems in-house, allowing me to integrate reliable transcription capabilities quickly and focus on building features that add value to the application.
Yassine R.
Best multilingual real-time transcription on the market
Reviewed on Jan 30, 2026
Review provided by G2
What do you like best about the product?
- Excellent multilingual real-time transcription with smooth language switching - Superior accuracy on accented speech compared to competitors - Clean API, easy to integrate and deploy to production
What do you dislike about the product?
- The minimum "maximum duration without endpointing" is 5 seconds. For real-time dictation use cases, this makes the experience feel slightly slow. Competitors offer 4-second minimums, and that 1-second difference is noticeable in practice.
What problems is the product solving and how is that benefiting you?
I integrated Gladia into my production app for real-time voice input and it quickly became my go-to for multilingual transcription. My user base is international, many speak English plus German, French, Polish, etc., and frequently switch languages mid-dictation. Gladia handles this seamlessly.
I tested it side-by-side against a prominent model without dropping names 😅 Gladia consistently outperformed, especially with accented English and language-switching scenarios. The accuracy is genuinely impressive. Bit slower than I hoped for but definitely not that bad.
Prathmesh G.
Advanced Speech-to-Text with Impressive Accuracy and Real-Time Processing
Reviewed on Dec 16, 2025
Review provided by G2
What do you like best about the product?
Gladiator offers an advanced speech to test with features like high accuracy low latency support for languages and real time for processing developers to build applications
What do you dislike about the product?
Gladia struggles with transcription accuracy, and the costs can become quite high when dealing with large volumes.
What problems is the product solving and how is that benefiting you?
Gladia addresses the challenge of achieving both accuracy and efficiency when converting speech to text in complex, real-world situations. This is particularly valuable for businesses, as it delivers results that are not only fast but also highly accurate.
Paul B.
Blazing Fast Speech Recognition with Impressive Multilingual Accuracy
Reviewed on Dec 03, 2025
Review provided by G2
What do you like best about the product?
It's an incredible fast model. We are using the speech recognition model and it's unbelievably good for single or multi-language detection. We've integrated many models into our platform at Line 21, but Gladia is definitely in the top.
What do you dislike about the product?
It currently lacks diarisation, but I know it's in their roadmap.
What problems is the product solving and how is that benefiting you?
It is very good at multi-language detection. This is the main use case in our platform for Gladia. It's incredible they support some many languages in a code-switching context. And also does this super fast.
Pratik S.
Fast, Human-Like Transcriptions with Room for Multilingual Improvement
Reviewed on Nov 25, 2025
Review provided by G2
What do you like best about the product?
I truly appreciate how fast Gladia is; it's incredibly efficient in handling conversations that are rich in context, which is vital for our operations. The conversations feel natural and human-like rather than robotic or AI-generated, which is critical, especially in customer support where maintaining a calm and controlled interaction is paramount. Gladia's transcriptions cater well to multilingual requirements, thus significantly aiding our customer support in a complex multilingual setup. Moreover, seamlessly integrating Gladia into our existing pipelines and workflows has greatly enhanced our operations. The setup process was straightforward, and the user experience is intuitive, allowing for a smooth transition and familiarity for our team. Our decision to switch to Gladia was influenced by how our developers found it to be a better choice for our needs compared to other text-to-speech platforms like Eleven Labs.
What do you dislike about the product?
The offering from Gladia is relatively new, and while the overall experience has been great, we have encountered some issues in our pipelines. Additionally, while the multilingual feature works well for English translation, there is room for improvement in other languages.
What problems is the product solving and how is that benefiting you?
I use Gladia for real-time and asynchronous transcriptions, helping with complex multilingual customer support and automating workflows. It integrates seamlessly into our systems, offering a fast, human-like interaction that enhances our multilingual communications and customer experiences.