ElevenLabs v3 - Kyma API

Overview

ElevenLabs v3 generates speech from text input with support for emotional range, inline audio tags, and natural delivery across more than 70 languages. It operates at a medium speed tier with a balanced cost profile and a 5,000-token context window. On Kyma, the model runs through an OpenAI-compatible endpoint with automatic failover to maintain delivery if a serving path degrades. It supports prompt caching, which bills repeated prompt prefixes at this model’s cached input rate. Responses return exact billing data in usage.cost and identify the executed model via the X-Kyma-Model header. The model does not support reasoning, vision, or structured outputs. It is strictly a speech generation engine, so it will not process images, execute code, or return JSON schemas.

Specs

Field	Value
Model ID	`eleven-v3`
Best for	Expressive narration, character voices, emotional dialogue, premium voiceovers
Context window	5,000
Input modalities	Text
Output modalities	Audio
Tool calling	Yes
Structured outputs	Yes
Prompt caching	Yes
Speed	Medium
Cost band	Balanced
Release stage	Stable

Pricing

	Per 1M tokens
Input	$0.20
Output	$0.60

Use this when

Premium Voiceover Production — Generate broadcast-quality narration with controlled emotional pacing and tone.
Character Dialogue Generation — Produce distinct, expressive voices for interactive fiction or game assets.
Multilingual Audio Localization — Convert scripts into natural-sounding speech across more than seventy languages.
Emotional Audiobook Narration — Render long-form text with dynamic inflection and audio tag directives.

Not ideal for

Do not use this model for real-time conversational speech or high-throughput batch processing where latency and cost efficiency are the primary constraints.

Pick something else when

You need faster, lower-latency speech generation: use eleven-flash-v2-5.
You require custom voice cloning or voice design: use minimax-voice-clone or minimax-voice-design.
You need background music or sound effects instead of speech: use elevenlabs-music or elevenlabs-sfx.

Example

from openai import OpenAI

client = OpenAI(base_url="https://kymaapi.com/v1", api_key="ky-...")

response = client.chat.completions.create(
    model="eleven-v3",
    messages=[{"role": "user", "content": "..."}],
)

Agent query example

Ask the API which models fit, instead of hardcoding an id:

curl "https://kymaapi.com/v1/models?recommended_for=generate-speech&tools=true&quality_tier=frontier-open"

FAQ

Does this model support prompt caching on Kyma? Yes. Repeated prompt prefixes are billed at this model’s cached input rate, reducing costs for recurring scripts. What happens if the serving path degrades during a request? Kyma automatically reroutes the request to a healthy provider, ensuring delivery without manual intervention. Can I use this model for structured JSON outputs or image analysis? No. It only accepts text input and returns audio. It does not support reasoning, vision, or structured output formats.

​Overview

​Specs

​Pricing

​Use this when

​Not ideal for

​Pick something else when

​Example

​Agent query example

​FAQ