Introducing ElevenLabs Turbo V2.5 on WaveSpeedAI

Introducing ElevenLabs Turbo V2.5: Lightning-Fast Text-to-Speech in 32 Languages on WaveSpeedAI

Natural, expressive speech synthesis has become essential for modern applications—from conversational AI assistants to audiobook production and gaming voiceovers. Today, we’re excited to announce that ElevenLabs Turbo V2.5, one of the most powerful low-latency text-to-speech models available, is now accessible through WaveSpeedAI’s inference platform.

Whether you’re building real-time voice agents, creating multilingual content, or developing the next generation of interactive applications, Turbo V2.5 delivers the speed and quality you need—without the infrastructure headaches.

What is ElevenLabs Turbo V2.5?

Turbo V2.5 represents ElevenLabs’ optimized approach to text-to-speech synthesis, specifically engineered for low-latency applications without sacrificing the vocal quality that has made ElevenLabs an industry leader.

The model generates speech in approximately 300 milliseconds—a remarkable 300% faster than ElevenLabs’ Multilingual v2 model. For English specifically, it delivers 25% faster generation compared to its predecessor, Turbo v2. With a Mean Opinion Score (MOS) of 4.72 out of 5.0, the audio quality approaches human-level speech, and independent benchmarks show a Word Error Rate below 3.1%.

What sets Turbo V2.5 apart is its ability to produce natural, expressive speech with humanlike prosody—the subtle variations in rhythm, stress, and intonation that make synthesized speech sound genuinely human rather than robotic.

Key Features

Multilingual Excellence

Turbo V2.5 supports 32 languages, making it one of the most versatile TTS models available:

Major European languages: English, Spanish, French, German, Italian, Portuguese, Dutch, Polish, Swedish, Norwegian, Danish, Finnish, Greek, and more
Asian languages: Japanese, Korean, Mandarin Chinese, Hindi, Tamil, Malay, Vietnamese
Additional languages: Arabic, Hebrew, Turkish, Russian, Ukrainian, Hungarian, and others

The v2.5 update specifically added Vietnamese (85 million speakers), Hungarian (13 million speakers), and Norwegian (5.3 million speakers)—expanding accessibility to over 100 million additional people worldwide.

Optimized Performance

~300ms latency for most languages—ideal for real-time conversational applications
3x faster generation for non-English languages compared to Multilingual v2
40,000 character limit per request, enabling extended content generation in a single call

Fine-Grained Voice Control

Similarity slider (0-1): Control how closely the output matches the base voice timbre
Stability slider (0-1): Adjust delivery consistency—higher values produce more predictable output
Speaker Boost: Enhanced pronunciation for English numbers, dates, times, and measurements—particularly valuable for finance, healthcare, and technical content

Rich Voice Library

Access a diverse catalog of pre-built voices across multiple languages and styles. Each voice has been carefully crafted for specific use cases, from professional narration to casual conversation.

Real-World Applications

Conversational AI and Voice Assistants

With sub-300ms latency, Turbo V2.5 is purpose-built for real-time interactions. Whether you’re building customer service chatbots, virtual assistants, or AI companions, the model delivers responses fast enough to maintain natural conversation flow.

Content Creation and Media Production

Produce high-quality voiceovers for videos, podcasts, and animations without booking studio time or coordinating with voice actors. The multilingual support enables rapid localization for global audiences.

Gaming and Interactive Entertainment

Bring game characters to life with context-aware, emotionally accurate voices. The model’s expressive synthesis creates immersive experiences for players, while the low latency supports dynamic in-game dialogue.

Audiobook Production

Transform written content into engaging audio experiences. The 40,000 character limit allows for efficient processing of longer texts, and the humanlike prosody keeps listeners engaged throughout.

Accessibility Solutions

Enable users with visual impairments or reading disabilities to experience digital content in its full richness. The natural speech quality reduces listener fatigue during extended use.

E-Learning and Training

Create professional narration for educational content across multiple languages, making training materials accessible to global teams without multiplying production costs.

Getting Started on WaveSpeedAI

Using Turbo V2.5 through WaveSpeedAI is straightforward:

Prepare your text: Enter your script, using clear punctuation for optimal rhythm. For very long content, consider splitting into logical segments.
Select a voice: Choose from the available voice library—options include Gigi, Callum, Alice, and many more across different languages and styles.
Configure optional settings:
- Adjust similarity for voice matching precision
- Set stability for delivery consistency
- Enable Speaker Boost for improved number and measurement pronunciation
Generate: Submit your request and receive your audio output

The model is available at $0.05 per 1,000 characters, with a minimum billing of 1,000 characters per request.

Try ElevenLabs Turbo V2.5 on WaveSpeedAI →

Why WaveSpeedAI?

Running Turbo V2.5 through WaveSpeedAI gives you distinct advantages over managing infrastructure yourself:

No cold starts: Your requests are processed immediately, without waiting for model initialization
Consistent performance: Our infrastructure is optimized for production workloads at any scale
Simple REST API: Integrate with your applications using straightforward HTTP requests
Affordable pricing: Pay only for what you use, with transparent per-character billing

Best Practices for Optimal Results

For steady rhythm: Use clear punctuation and natural sentence structure. The model interprets commas, periods, and other punctuation as pauses and inflection cues.

For consistent pronunciation: Specify the language code explicitly when working with multilingual content or text containing foreign words.

For professional audio: Enable Speaker Boost when your content includes financial figures, timestamps, measurements, or technical specifications.

For long content: Split very long texts into logical segments (chapters, sections, paragraphs) for easier management and faster iteration.

Start Building Today

ElevenLabs Turbo V2.5 on WaveSpeedAI opens the door to production-ready text-to-speech for developers, content creators, and enterprises. With 32 languages, sub-second latency, and humanlike quality, it’s equipped to power everything from global chatbots to multilingual media production.

The combination of ElevenLabs’ industry-leading synthesis technology and WaveSpeedAI’s optimized inference platform means you can focus on building great applications—not managing infrastructure.

Ready to add natural, expressive speech to your application? Get started with ElevenLabs Turbo V2.5 on WaveSpeedAI.

Explore our full catalog of text-to-speech models, including ElevenLabs Flash v2.5 for ultra-low latency applications and Multilingual v2 for maximum expressiveness.