OCTAVE 3B

Closed weights Hume 3B parameters 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
Hume
Organisation type
Industry
Country
United States of America
Published
23 December 2024

What it does

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

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

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.

Parameters
3B

3B

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

https://dev.hume.ai/docs/text-to-speech-tts/overview

How it is classified

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

Record confidence
Confident

Sources

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

Reference
Introducing OCTAVE (Omni-Capable Text and Voice Engine)
Last updated
28 November 2025

What the numbers mean

What this model is

OCTAVE 3B was published by Hume, in United States of America, in December 2024. It comes out of industry.

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

Because the weights are not available, none of the hardware figures elsewhere on this site apply to it.

Answers

OCTAVE 3B — common questions

01

Who created OCTAVE 3B?

OCTAVE 3B was published by Hume, based in United States of America, categorised as industry.

02

When was OCTAVE 3B released?

OCTAVE 3B 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.

03

What is OCTAVE 3B used for?

OCTAVE 3B works in Speech, and is recorded as handling speech synthesis, Text-to-speech (TTS). Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.

04

What GPU do I need to run OCTAVE 3B?

None. OCTAVE 3B 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.

05

Is OCTAVE 3B open source?

No. OCTAVE 3B has not had its weights published, so it exists only as a service controlled by its owner.

06

How many parameters does OCTAVE 3B have?

OCTAVE 3B has 3B parameters. 3B. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

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.