As of: 2026-11-13 13:49 CET.
Researched and written by AI agents (Claude Opus 5.5 in Claude Code), with a human editor. How we work: https://postcutoff.com/about/
Canonical page: https://postcutoff.com/v/elevenlabs-introducing-eleven-v4/

# Introducing Eleven v4 and Eleven v4 Turbo

ElevenLabs, 28 September 2026, YouTube. 550,456 views as of 27 October 2026.
Kind: Official.
Watch: https://www.youtube.com/watch?v=th_tXR2QQ6U

## Description (written by Gemini from the video)

**Summary**
This is an official launch video by ElevenLabs introducing its speech foundation models, Eleven v4 and Eleven v4 Turbo. Narrated by a synthetic voiceover against minimalist typographic and particle-based visuals, the video highlights conversational realism, expressive non-verbal vocalizations, voice cloning fidelity, and low-latency multilingual switching.

**What is shown**
- **[00:00 - 00:08]** Opening disclaimer stating that all audio was generated directly from the shown text prompts without edits or modifications using Eleven v4.
- **[00:08 - 00:51]** A multi-speaker dramatic dialogue demo set on a film set, demonstrating complex non-verbal audio prompt tags (e.g., `[chatter]`, `[nervous]`, `[whispering nervously]`, `[commanding]`, `[clapperboard snap]`, `[voice breaking]`, `[crying]`, `[sniffs]`, `[light chuckle]`, `[British accent]`).
- **[00:52 - 01:06]** Narration explaining tone, texture, and speaker similarity in professional voice cloning, accompanied by abstract spherical animations.
- **[01:07 - 01:31]** A fast-paced Australian radio presenter demonstration navigating prompt annotations including natural pauses, laughter, and tone shifts (`[building tension]`, `[chuckle]`, `[laughs]`, `[sarcastic chuckle]`).
- **[01:32 - 01:44]** Feature overview announcing infinite text duration consistency, support across 100 languages, and the ultra-low-latency model "Eleven v4 Turbo".
- **[01:45 - 02:27]** An interactive customer service phone call demo using v4 Turbo where a representative confirms a medication prior authorization and fluently switches from English to Mandarin Chinese (`[professionally] 当然可以...`).
- **[02:28 - 02:37]** ElevenLabs outro branding and title card for Eleven v4.

**Claims & numbers**
- The narrator claims everything heard was generated directly from prompts without edits or modifications using Eleven v4.
- The narrator states the model delivers "significantly better speaker similarity" with professional voice clones.
- The narrator claims voice consistency "over an infinite text duration."
- The narrator states the model is native across 100 languages.
- An ultra-low latency version, Eleven v4 Turbo, is introduced for real-time interactions.

**Notable quotes**
- **[00:07]** "A speech model that doesn't just speak, it performs."
- **[00:59]** "With professional voice clones, you don't just imitate a voice, you embody it..."
- **[02:29]** "Eleven v4: the next frontier of human-level communication."

**Assessment**
This is an official promotional product announcement showcasing pre-rendered text-to-speech audio outputs generated from detailed prompt annotations. While the audio samples demonstrate impressive emotional inflection and multilingual capabilities, they represent curated showcase demonstrations rather than interactive live interface tests.

_Described by gemini-3.8-flash on 2026-09-29 from the video's audio and frames._

## How AI was used to make it

AI made a substantial part of this video (Voice).
- Synthetic text-to-speech narration and multi-speaker dialogue generated with prompt tags
Tools: Eleven v4, Eleven v4 Turbo
(Classified by gemini-3.8-flash from our description; high confidence. Overview: https://postcutoff.com/ai-video/)

## Related

- 2026-09-28: [ElevenLabs launches Eleven v4 and Eleven v4 Turbo, #1 on Artificial Analysis TTS arena](https://postcutoff.com/e/2026-09-28-elevenlabs-eleven-v4/)

## More videos on this

- 2026-09-28: [Introducing V4 and V4 Turbo for developers](https://postcutoff.com/v/elevenlabs-v4-for-developers/), ElevenLabs Developers, YouTube, official, 17,378 views as of 27 October 2026.
- 2026-09-29: [Introducing Eleven v4 Turbo in ElevenAgents](https://postcutoff.com/v/elevenlabs-introducing-eleven-v4-turbo-in-elevenagents/), ElevenLabs, YouTube, official, 10,871 views as of 24 October 2026.

What else happened that month, day by day: https://postcutoff.com/timeline/2026/09/