MPAI-PAF V1.4 Technical Specification (for Community Comments)

MPAI-PAF V1.3 Technical Specification

What MPAI-PAF is about

Description of the standard

The Portable Avatar Format (MPAI-PAF) project develops Technical Reports and Specifications targeting AI Workflows, Modules, and Data Types for interoperable Digital Humans.

MPAI-PAF V1.4 is released with a request for Community Comments and is available from the MPAI website. Anybody is invited to send comments on MPAI-PAF V1.4 to the MPAI Secretariat by April 13 at 23:59 UTC.

Watch video recording of online presentation (YouTube, WimTV)  Read PowerPoint presentation.

What MPAI-PAF is about

MPAI-PAF V1.3

Technical Specification Portable Avatar Format (MPAI-PAF) V1.3 (pdf)

MPAI thanks Seunggeun Baek, and Andrea Bottino who participated in the development of for their efforts  in the development of MPAI-PAF V1.3.

MPAI-PAF V1.2

Technical Specification Portable Avatar Format (MPAI-PAF) V1.2. (pdf)

MPAI-PAF V1.2 Technical Specification (online)

MPAI thanks Seunggeun Baek, Andrea Bottino, Alessandro D’Amelio, and   Marian Alexandru Ilies for their efforts  in the development of MPAI-PAF V1.2.


Technical Specification: Portable Avatar Format (MPAI-PAF) specifies:

  1. The Portable Avatar Format and related Data Formats allowing a sender to enable a receiver to decode and render an Avatar as intended by the sender.
  2. The Personal Status Display Composite AI Module allowing conversion of a Text and a Personal Status into a Portable Avatar .
  3. The AI Workflows and AI Modules composing the Avatar-Based Videoconference Use Case also using Data Types from other MPAI Technical Specifications.

Material about MPAI-PAF V1.1

MPAI thanks the following individuals for their valuable contributions to the development of MPAI-PAF: Seunggeun Baek (Klleon), Andrea Bottino (Politecnico di Torino), Vittorio Cuculo (Università di Milano), Alessandro D’Amelio (Università di Milano), Marian Alexandru Ilies (Politecnico di Torino), David Schultens, and Jaime Yoon (Hancom).


The MPAI-PAF Working Draft (htmlpdf) was published with a request for Community Comments. See also the video recordings (YouTubeWimTV) and the slides of the presentation made on 07 September. Read An overview of Avatar Representation and Animation (MPAI-ARA). Comments should be sent to the MPAI Secretariat by 2023/09/26T23:59 UTC.