ElevenLabs TTS v4 Turbo

• - ⚡ Low-latency variant of Eleven v4, ~100ms median inference latency.
• - 💬 Purpose-built for real-time voice agents and interactive experiences.
• - 🎯 Audio tags replace SSML for pacing and delivery control.
• - 🧠 New architecture reading tone, emotion and scene context from text.
• - 🆕 Professional Voice Clones supported, unlike Eleven v3.
• - 🏢 Released alongside the quality-focused Eleven v4 flagship.
• - 🔧 Style and Speed sliders absent in the v4 family.
• - 📚 Available through ElevenLabs' text-to-speech API and Venice.

ElevenLabs

ElevenLabs is a software company specializing in natural-sounding speech synthesis and audio generation powered by deep learning. The company has established itself as a leading force in AI-driven voice technology, building tools that span text-to-speech,…

ElevenLabs TTS v4 Turbo is the latency-optimized member of ElevenLabs' Eleven v4 text-to-speech generation, released alongside the quality-focused ElevenLabs TTS v4. Where the flagship targets produced audio — audiobooks, dubbing, character voiceovers — Turbo is aimed at live calls and agent loops, which ElevenLabs says it optimized jointly with its conversational agents platform as a single system. On Venice it is exposed for fast speech generation with audio tag support and automatic text normalization.

Against the earlier Turbo line, represented here by ElevenLabs Turbo v2.5, the jump is both architectural and operational. ElevenLabs documents v4 Turbo at roughly 100 ms median inference latency and about 150 ms median time to first speech, versus the roughly 250–300 ms band the company lists for Turbo v2.5.

Compared with ElevenLabs TTS v3, the provider states that the v4 family is built on a new architecture with higher audio fidelity, wider emotional range, more reliable audio tag following, improved language coverage, and stable speaker identity across regenerations; Professional Voice Clones, unsupported in v3, work again and behave identically across v4 and v4 Turbo. Instant Voice Clones are described as more faithful to short reference samples.

Practical notes: SSML, including break tags, is disabled, with natural-language audio tags serving as the control surface, and the Style and Speed sliders are absent. Siblings such as ElevenLabs Multilingual v2, [[sibling:elevenlabs/scribe-v2|ElevenLabs Scribe V2]] and ElevenLabs Music v2.5 cover long-form narration, transcription and music respectively.