Sub-103ms streaming, accurate from the first word — so your agent responds in the moment, your IVR routes correctly, and neither pauses long enough for callers to notice.
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Callers notice a long pause, a misheard first word, or a session degrading under load before they notice anything else. Gladia is built for the real-time performance voice AI demands.
A 300ms pause feels like lag; a full second sounds broken. Voice AI runs at conversational speed, so your STT layer has to deliver partials fast enough for your LLM to respond before the caller notices a gap.
Post-call transcription has a full conversation to lean on; voice agents and IVR don't — every call starts cold, with no prior turns or acoustic context. The first word is also often the most important: intent, an account number, a routing keyword.
A latency issue at 10 concurrent sessions is a dev problem; at 1,000, it's a client escalation. Call volume spikes and peak hours mean your STT layer must hold its latency and accuracy when load multiplies.
Most STT benchmarks run on clean, studio audio — your callers are on mobile phones in traffic, on noisy landlines, switching languages mid-sentence. That gap between benchmark and production accuracy on real telephony audio is where most STT providers lose voice AI builders.
A caller switching languages mid-sentence doesn't wait for a handoff, and a multi-market contact center shouldn't need a separate model, pipeline, or integration per language.
No sales call. No STT infrastructure to build. Stream your call audio, get real-time transcription immediately.
Create an account to access your API key. Every account includes 10 free hours with the full feature set — sub-103ms streaming, WebSocket support, 100+ languages, and barge-in handling.
Selectra handles thousands of inbound calls daily across 200+ sales agents. As they move toward AI-assisted handling — routing, real-time support, and interaction analysis — the latency and accuracy of their STT layer became the constraint. An agent that pauses, mishears a caller's intent, or drops a session under peak volume isn't a better experience than a human one.
Gladia's API performs very well with noisy telephony audio and stereo files.
The speed and accuracy improvements were game-changers. We cut transcription time by 95% and the multilingual support is unmatched.
Gladia's real-time code-switching has been a real 'wow' factor! Plus, the accuracy of transcription has been excellent.
Gladia's real-time code-switching has been a real 'wow' factor! Plus, the accuracy of transcription has been excellent.
Gladia's feature rollouts and performance with noisy telephony and stereo audio have genuinely impressed our team.
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