Primary use stated or inferred cautiously from official documentation.
11
ELEVENLABS / eleven_v4_turbo
Eleven v4 Turbo
Eleven v4 variant optimized for voice agents and expressive real-time responses.
01 / SUMMARY
The essential
Maximum input capacity when published by the source.
Documented maximum generation limit.
Verified availability channels.
Primary functional family and verified specialties.
Declared terms for API access, model weights, or self-hosting.
02 / TECHNICAL SHEET
Limits and integration
| API ID | eleven_v4_turbo |
|---|---|
| Model type | Voice and audio |
| Access model | Paid proprietary |
| License | Proprietary |
| Deployment | Hosted API |
| Release | 28 SEP 2026 |
| Knowledge cutoff | Not published |
| Entrance | Text |
| Exit | Audio · Multi-speaker dialogue |
| Context window | Voiceover text |
| maximum output | Streaming audio |
| Reasoning | Not published |
| Published tools | Streaming · Professional voice cloning |
| Structured Outings | Not published |
| Batch processing | Not published |
| Prompt cache | Not published |
| Fine-tuning | Not published |
| Verified platforms | ElevenAPI · ElevenAgents |
Phone agents and interactive voice conversations.
Measures end-to-end latency, including network and playback.
03 / CAPABILITIES
What it can do
Orientation
Phone agents and interactive voice conversations.
Context
Voiceover text · Streaming audio
Tools and integration
Streaming · Professional voice cloning
Access
ElevenAPI · ElevenAgents
Input modalities
Text
04 / PRICES
Documented cost
| Concept | Worth | Unit/condition |
|---|---|---|
| Standard input | Not published | Standard API rate |
| Cached input | Not published | Reading reused prefixes |
| Cache write or storage | Not published | The condition varies by provider |
| Standard output | Not published | May include reasoning tokens |
| Batch input | Not published | Asynchronous processing |
| Batch output | Not published | Asynchronous processing |
Consult the primary source before budgeting for a deployment.
i Prices change and may depend on level, region or context length. Check the source before making a decision.
05 / EVALUATIONS
How to read the results
“
A public benchmark provides guidance, but does not replace an evaluation with your data, tools, budget, and error tolerance.
i We have not found published benchmarks for this model.
Inferama only highlights a “best result” when the metric, test set, configuration, and date allow for an equivalent comparison. The supplier's figures are presented as claims from its own source.
06 / VERSIONS
Chronology
Eleven v4 Turbo
Version added to Inferama's verified catalog.
ANALYSIS
Related analysis
Eleven v4 vs. v4 Turbo: How to Choose for a Voice Agent
ElevenLabs reports an average time to first audio of about 150 ms for v4 Turbo over WebSocket, excluding network latency. That is a provider-reported figure, not a guarantee of end-to-end response time. This guide explains how to measure the full interaction and choose based on the trade-offs between speed, expressive control, and consistency.
19 Oct 2026 ↗
Eleven v4 Turbo for Voice Agents: What We Know About Its Latency and What Still Needs Testing
ElevenLabs presents v4 Turbo as a low-latency variant and publishes median inference latency of around 100 ms. That figure is not the response time of a complete agent: measurement details, access conditions, applicable pricing, and model-specific security evidence are still missing.
02 Oct 2026 ↗07 / SOURCES