New Text-to-Speech model
A new Gradium Text-to-Speech model is live and is now the default. Existing voices, including custom voices, work as-is.The model reads the structured entities that break voice agents in production, such as phone numbers, email addresses, IBANs and reference codes, with no pre-processing or text normalization needed. On Coval, time to first audio P50 is 216 ms, 170 ms faster than the previous model.Full benchmarks, audio samples and the open-sourced evaluation set are in the release post. To get started, see Text-to-Speech.
Always set a language for transcription
Speech-to-Text requests now require a
language in json_config. Our ASR gives its best results when the language is known, so set it whenever you can: en, fr, es, pt, or de. When the language is not known ahead of time, pass any and the model detects it from the audio. Requests that already set a language or any are unaffected. See Transcription Settings.The Resources menu on the website now links straight to these release notes.Gradium Studio and website updates
- Model selector in Gradium Studio: the Text-to-Speech page now has a Model dropdown to switch between the production model and
gradium-tts-beta, showing eachmodel_namewith a copy button. - Shareable studio links: pre-configure a session with
?voice=,?model_name=,?text=and?language=and share the full setup as a single link. Links now survive login and signup, so they work for recipients who are not signed in yet; voice IDs with ready-made links are on Flagship Voices. - Onboarding for new accounts: signing up or accepting an invitation now starts with a short three-step setup to get you up and running quickly.
- Contact and feedback without leaving the studio: the profile menu now has Support > Contact and Support > Feedback, the same forms as on the website, with attachments.
- System appearance: a new System theme option in the studio follows your OS light or dark preference live.
- Feedback page on the website: gradium.ai/feedback is a standalone form for product feedback, open to everyone.
- Live Translation demo: pick the target language and the output voice in one “Translate to … with the voice of …” row on the website demo.
Improved translation models
Our live translation models (
stt-translate for translated transcription and s2s-translate for Speech-to-Speech) now produce more natural, more accurate translations, with better context understanding across a conversation. The quality gains are most noticeable on conversational speech.See Speech-to-Speech and the Speech-to-Text overview to get started.