Gradium

What Gradium does

Gradium provides real-time, scalable voice APIs for modern applications and AI agents, built on cutting-edge research. They offer Text-to-Speech (TTS), Speech-to-Text (STT), smart turn-taking, and instant voice cloning. Gradium builds the technological backbone, models, and infrastructure to support all voice applications, focusing on natural, expressive, real-time voice interactions at scale. Their founders have invented and published methods and algorithms behind many existing voice and audio models, translating this research into production-ready systems for developers and enterprises while continually pushing research frontiers.

Products

• Text-to-Speech (TTS)Turn text into natural sounding voice with low-latency and high-quality output.
• Speech-to-Text (STT)Transcribe audio into text instantly with best-in-class accuracy, including keyword boosting for specific vocabulary.
• Live TranslationConvert voice to voice in real time.
• Voice CloningOffers instant or pro voice cloning capabilities.
• On-Device TTSOffline real-time natural voice generation.
• Speech-to-Speech TranslationReal-time translation of spoken language.
• GradbotTool to build voice agents in a single prompt.

Key capabilities

• Real-time voice APIs
• Scalable voice APIs
• Smart turn-taking
• Instant voice cloning
• On-device TTS
• Keyword boosting for Speech-to-Text
• Multilingual support (English, French, German, Spanish, Portuguese)
• Low-latency (below 300ms time-to-first-token when streaming)
• Voice library with multiple voices
• Semantic VAD (Voice Activity Detection) in STT streams
• Adaptive delay control
• Studio access
• API access
• Commercial use
• Engineering Support (for grant recipients)
• Early Access to Newest Models and Research Previews (for grant recipients)

Use cases

• Building production voice systems
• Creating voice agents
• Integrating voice capabilities into modern applications
• Translating spoken language in real-time

AI approach

Gradium provides real-time, scalable voice APIs for Text-to-Speech (TTS), Speech-to-Text (STT), smart turn-taking, and instant voice cloning. They build their own models and infrastructure based on cutting-edge research, translating over a decade of open research into production-ready systems. They also push the frontier of research to invent next-generation voice algorithms.

Tech named: TTS, STT, smart turn-taking, instant voice cloning, real-time voice AI, Keyword boosting, neural audio codecs, audio language models, Semantic VAD, Adaptive delay control

What it says sets it apart

• Built on cutting-edge research
• Founders have invented and published methods and algorithms behind most voice and audio models existing today
• Translating over a decade of open research into production-ready systems
• Continually pushing the frontier of research to invent the next generation of voice algorithms
• Low-latency and high-quality output
• Best-in-class accuracy for Speech-to-Text
• Keyword boosting for STT to recognize specific vocabulary

Funding rounds we track

From the AI funding tracker — rounds as reported by the linked publications.