Eleven Flash v2.5

Closed weights ElevenLabs December 2024

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
ElevenLabs
Organisation type
Industry
Country
United States of America
Published
18 December 2024

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Speech
Task
Text-to-speech (TTS), Speech synthesis

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Training data
tokens

Availability

Whether you can obtain the model and run it on your own hardware, which is what decides if any of the graphics-card figures on this page apply.

Weights
Closed — provider access only
Model access
API access
Training code
Unreleased

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Unknown

Sources

Where this record came from and when it was last checked.

Reference
You’ve never experienced human-like TTS this fast
Last updated
28 November 2025

What the numbers mean

What this model is

Eleven Flash v2.5 was published by ElevenLabs, in United States of America, in December 2024. industry is the category the publisher falls under.

It works in Speech, and is recorded as doing text-to-speech (TTS), Speech synthesis.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Answers

Eleven Flash v2.5 — common questions

01

Is Eleven Flash v2.5 open source?

No. Eleven Flash v2.5 has not had its weights published, so it exists only as a service controlled by its owner.

02

How many parameters does Eleven Flash v2.5 have?

No parameter count has been published for Eleven Flash v2.5, which is why no memory or speed figure appears on this page.

03

Who created Eleven Flash v2.5?

Eleven Flash v2.5 was published by ElevenLabs, based in United States of America, categorised as industry.

04

When was Eleven Flash v2.5 released?

Eleven Flash v2.5 was published in December 2024. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

05

What is Eleven Flash v2.5 used for?

Eleven Flash v2.5 works in Speech, and is recorded as handling text-to-speech (TTS), Speech synthesis. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

06

What GPU do I need to run Eleven Flash v2.5?

None. Eleven Flash v2.5 is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

Source

Original publication

Record last updated 28 November 2025

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.