Gradium TTS (Oct 2026)

Gradium TTS is a real-time text-to-speech model developed by Gradium designed for low-latency conversational agents and voice applications. Emphasizing high-speed audio generation, the model achieves minimal time-to-first-audio (TTFA) latency and eliminates leading silence to ensure voice agents respond naturally without awkward pauses. It is engineered to process complex conversational edge cases natively—such as phone numbers, email addresses, spelling sequences, IBANs, and numeric formatting—without requiring heavy upstream text normalization.

Capabilities and Performance

The model supports multi-lingual capabilities and maintains consistent acoustic quality, natural prosody, and stable voices across multiple supported languages. Gradium TTS handles streaming text generation seamlessly, enabling audio synthesis to begin before a connected large language model completes outputting a full sentence. Independent voice evaluations and production benchmarks highlight its performance on difficult pronunciation tasks, making it suited for customer support lines, automated assistants, and real-time interactive voice applications.