Gladia

Gladia is an end-to-end audio infrastructure platform that lets developers record, transcribe, and enrich audio through a single API. It offers real-time speech-to-text with very low latency and asynchronous batch transcription, supporting more than 100 languages with seamless code-switching between them.

Built-in audio intelligence adds speaker diarization, sentiment analysis, named entity recognition, and an audio-to-LLM pipeline that turns conversations into structured data. Its proprietary Solaria model is tuned for noisy, fast-paced, real-world conversational audio and posts strong word-error-rate results, especially across major European languages.

Gladia targets contact-center and customer-experience automation, sales intelligence and call analysis, meeting assistants and note-takers, media editing and subtitle generation, and voice agents, and it reports serving hundreds of thousands of developers and thousands of enterprise teams.

As an EU-based provider it offers data residency options and holds SOC 2 Type II, GDPR, HIPAA, and ISO 27001 compliance. Strengths include broad language coverage, accurate transcription in difficult audio, rich enrichment features, and a developer-friendly single API.

Limitations are that it is an infrastructure product aimed at developers rather than an end-user transcription app, usage-based pricing can be hard to forecast at scale, and getting the most from it requires building your own product layer on top.

Gladia offers a free tier of processing hours plus usage-based pricing. Pricing changes often, so check the official site for current plans.

Gladia's core capabilities include Real-time and batch speech-to-text, Support for 100-plus languages, Speaker diarization and sentiment analysis, Named entity recognition, Audio-to-LLM structured data pipeline and EU data residency and compliance.

Real-time and batch speech-to-text is built in, Support for 100-plus languages is built in, Speaker diarization and sentiment analysis is built in, Named entity recognition is built in, so you get a rounded toolkit rather than a single trick.

Each feature is designed to take the manual effort out of the task and help you reach a usable result faster, which is what makes Gladia worth a place on your shortlist.

On the plus side, users consistently highlight Accurate transcription in noisy audio, Very broad language coverage and Rich enrichment in one API as the reasons they keep using Gladia.

It isn't perfect, though — Developer-focused, not an end-user app, Usage pricing hard to forecast at scale and Requires building a product layer on top are the trade-offs people most often mention, so weigh those against your own priorities before you commit.

As with any AI tool, the output still benefits from a quick human review, but Gladia gets you most of the way there with far less effort.

Gladia runs on a freemium pricing model, so you can start for free and only pay once you outgrow the free tier — handy for testing it on a real task before spending anything.

AI-tool pricing changes often, so always check the current plans, seats and add-ons on the official site for the latest details before you buy. Who is Gladia for? It's best suited for speech-to-text api with audio intelligence.

Whether you're a beginner trying this kind of AI tool for the first time or a professional who'll use it every day, it's a credible option to consider.

If you're still deciding, compare Gladia against the alternatives and the head-to-head comparisons linked below — looking at features, pricing and real user ratings side by side is the fastest way to find the right fit for your workflow and budget.