Eleven v4 Turbo

Eleven v4 Turbo is a low-latency text-to-speech model developed by ElevenLabs, optimized specifically for real-time conversational agents, interactive voice experiences, and live applications. Built upon the same expressive architecture as the flagship Eleven v4 model, the Turbo variant achieves a median inference latency of approximately 100 milliseconds, allowing it to respond faster than typical conversational pauses. It supports over 90 languages and retains the expressive emotional capabilities of its parent model, adapting its tone, pacing, and context dynamically during live interactions.

Key Capabilities and Architecture

The model incorporates advanced voice cloning features, supporting both Instant Voice Clones from short samples and high-fidelity Professional Voice Clones. Eleven v4 Turbo processes text inputs using inline audio tags and natural-language direction cues rather than traditional SSML controls, granting developers precise control over emotion, style, and delivery. It maintains speaker identity consistency and supports multi-speaker dialogue setups, making it well-suited for automated telephony, customer support agents, and interactive virtual characters.