Gladia API
Gladia is an API first speech to text platform. Signup, keys, docs and usage pricing are all public, and the v2 REST plus WebSocket surface ships with webhooks and official SDKs. Only enterprise extras such as custom models and SLAs need a conversation.
Frequently asked questions
Gladia scores A on the API Report Card. Gladia is an API first speech to text platform. Signup, keys, docs and usage pricing are all public, and the v2 REST plus WebSocket surface ships with webhooks and official SDKs. Only enterprise extras such as custom models and SLAs need a conversation.
Gladia has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
Gladia is an audio infrastructure vendor that packages speech to text and audio intelligence as a hosted API for teams building voice products.
Developer tools and AI infrastructure, sold to product and engineering teams rather than to a line of business. The dominant pattern is a single POST to the v2 pre-recorded endpoint that runs transcription, diarization, entity recognition and summarization in one call and returns a job id, with results delivered by webhook callback in production and polling with exponential backoff kept as a fault tolerant fallback.
Gladia is an established speech to text vendor for voice and meeting products, and it publishes SOC 2 Type II, GDPR and ISO 27001 posture alongside enterprise plans, but no audited customer counts or named logos appear in the sourced material.
The valuable data held here is the transcript corpus and its derived intelligence: verbatim text for pre-recorded and live audio, speaker diarization labels and turn boundaries, detected and switched languages, translations, summaries, sentiment signals, and named entities including people, emails and addresses along with PII redaction decisions.
The public surface is a modern JSON over HTTPS API pinned under a v2 path at api.gladia.io, paired with WebSocket streaming for live audio, which is the current shape for this category rather than a legacy SOAP or file drop integration.
Common alternatives include Deepgram, AssemblyAI, Speechmatics, Rev AI. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.