Primary use stated or inferred cautiously from official documentation.
11
ELEVENLABS / eleven_v4
Eleven v4
Expressive speech synthesis model for narration, characters, and dialogue in more than 90 languages.
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 |
|---|---|
| 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 | Audio |
| Reasoning | Not published |
| Published tools | Professional voice cloning · Multi-speaker dialogue |
| Structured Outings | Not published |
| Batch processing | Not published |
| Prompt cache | Not published |
| Fine-tuning | Not published |
| Verified platforms | ElevenAPI · ElevenCreative · ElevenAgents |
Audiobooks, dubbing, voice-over, and character voices.
Evaluate voice naturalness and fidelity by language and content type.
03 / CAPABILITIES
What it can do
Orientation
Audiobooks, dubbing, voice-over, and character voices.
Context
Voiceover text · Audio
Tools and integration
Professional voice cloning · Multi-speaker dialogue
Access
ElevenAPI · ElevenCreative · 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
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 Under Scrutiny: Documented Controls and Open Questions
ElevenLabs describes Eleven v4 as its most expressive text-to-speech model, with greater control over voice performance. That characterization comes from the provider: by itself, it neither quantifies quality nor demonstrates consistent results. Here is what the available sources support—and what a team would still need to verify.
01 Oct 2026 ↗07 / SOURCES