ElevenLabs

ElevenLabs is a voice AI company founded in 2022 that provides an API for text-to-speech, voice cloning, speech-to-speech conversion, and audio dubbing. Its models produce speech that is consistently ranked as the most natural-sounding available commercially. The API covers 32 languages with accent-aware output and supports real-time streaming for latency-sensitive applications like conversational AI, interactive assistants, and podcast narration.

Installation

pip install elevenlabs

Basic text-to-speech

from elevenlabs.client import ElevenLabs

client = ElevenLabs(api_key="YOUR_ELEVENLABS_API_KEY")

audio = client.text_to_speech.convert(
    voice_id="JBFqnCBsd6RMkjVDRZzb",  # premade voice: "George"
    model_id="eleven_multilingual_v2",
    text="Willkommen bei ai-solutions.wiki. Hier lernen Sie, wie Sie KI-Systeme in die Praxis umsetzen.",
    output_format="mp3_44100_128",
)

with open("output.mp3", "wb") as f:
    for chunk in audio:
        f.write(chunk)

Streaming for real-time applications

Use the WebSocket streaming API when integrating with a conversational agent and need audio to start playing before the full response is generated.

from elevenlabs.client import ElevenLabs
from elevenlabs import stream

client = ElevenLabs(api_key="YOUR_ELEVENLABS_API_KEY")

audio_stream = client.text_to_speech.convert_as_stream(
    voice_id="JBFqnCBsd6RMkjVDRZzb",
    model_id="eleven_flash_v2_5",  # optimised for low latency
    text="Your order has been confirmed. Delivery is scheduled for Thursday.",
    output_format="pcm_16000",
)

stream(audio_stream)

Voice cloning from a sample

Instant voice cloning accepts audio files of 30 seconds to 5 minutes. The clone is available immediately via the API.

from pathlib import Path
from elevenlabs.client import ElevenLabs

client = ElevenLabs(api_key="YOUR_ELEVENLABS_API_KEY")

with open("speaker_sample.mp3", "rb") as f:
    cloned_voice = client.clone(
        name="Customer Service Rep - AT",
        description="Austrian German accent, professional tone",
        files=[f],
    )

audio = client.generate(
    text="Guten Tag, wie kann ich Ihnen helfen?",
    voice=cloned_voice,
    model="eleven_multilingual_v2",
)

Pricing (as of June 2026)

A typical spoken minute of audio is roughly 750-900 characters. 100,000 characters equals approximately 110-130 minutes of audio.

Comparison with alternatives

When not to use ElevenLabs

Very high volume, cost is primary concern: At scale (hundreds of millions of characters per month), Google Cloud TTS or Amazon Polly costs roughly 5-10x less. The quality gap matters less for automated notifications or IVR systems.

Real-time phone telephony: ElevenLabs does not provide a SIP/PSTN integration. For direct voice calls, Twilio’s Voice Intelligence or Vonage AI Studio connect more directly to telephony infrastructure.

Purely German or Austrian government output: EU procurement rules may require GDPR-compliant EU-resident processing. Confirm ElevenLabs’ current DPA terms before using voice data from EU citizens.

Accessibility-first static content: For screen readers and ARIA-described content, browser-native Web Speech API or Google TTS with SSML gives you precise phoneme control and no per-character cost.

Further reading

• ElevenLabs API documentation : REST and WebSocket reference, model IDs, voice IDs
• ElevenLabs Python SDK : Full source, examples, changelog
• Voice Library : Premade voices browsable by accent, age, language, use case
• Conversational AI API : Real-time agent integration with turn detection and interruption handling
• What is an API? : Foundational explanation of APIs and how to call them
• Multi-Agent Systems : Integrating voice output with agentic workflows