PROJECT DESCRIPTION HORIZON EUROPE ELEXAI (European Lexicographic Infrastructure for Artificial Intelligence)

Call: HORIZON-INFRA-2025-01

Grant Agreement: № 101293013 — ELEXAI — HORIZON-INFRA-2025-01

Granting authority: European Research Executive Agency, European Commission

Start and end dates: 1.06.2026 – 31.05.2029

Objectives of the framework project «HORIZON EUROPE ELEXAI – European Lexicographic Infrastructure for Artificial Intelligence»:

Objective 1 – Expand ELEXIS services through AI-enhanced language models. Upgrade the ELEXIS infrastructure by integrating LLMs enriched with high-quality semantic resources. These models will be optimised for lexicographic tasks (monolingual and cross-lingual) and made available as services for a wide spectrum of user communities, from academic researchers to SMEs, enabling Europe to maintain leadership in multilingual and digital innovation.

Objective 2 – Provide lexicographically informed knowledge representations. Develop knowledge bases and knowledge graphs grounded in lexicographic principles and deploy them as interoperable services within the ELEXAI infrastructure. These resources will support cutting-edge applications in Natural Language Understanding (NLU) and AI, thereby broadening the scope of the research infrastructure (RI) to serve both the language sciences and data-driven sectors.

Objective 3 – Deliver European benchmarks and evaluation datasets. Produce and openly disseminate standardised evaluation datasets and benchmarks for lexicography, LLMs, and NLU/NLG. These benchmarks will strengthen Europe’s digital sovereignty by reducing the dependence on external (translated English) datasets, while providing a trusted basis for interoperability, reproducibility, and long-term impact across research and industry.

Objective 4 – Build an agentic AI-powered ELEXAI platform. Implement a next-generation, agentic AI-based infrastructure that supports the extraction, structuring, and linking of lexicographic resources at scale. This platform will extend the ELEXIS mission by offering new tools and services to multiple user communities (research, industry, cultural heritage, policy), and by providing remote and virtual access in line with the FAIR and Open Science principles.

Objective 5 – Ensure access, standards, and interoperability. Consolidate ELEXAI as a European hub for lexicographic standards, methods, and resources. The infrastructure will harmonise data formats, APIs, and interoperability frameworks across languages and domains, ensuring integration with related European RIs (e.g., CLARIN, DARIAH) and enhancing Europe’s capacity to address societal and policy challenges in multilingualism and digital communication.

Objective 6 – Promote Open Science and responsible innovation in lexicography. Foster an open-access culture across the lexicography and AI communities by ensuring that all datasets, tools, and services follow the FAIR principles. Training and guidance will be provided to researchers and user communities on responsible data sharing, IPR, and ethical standards, thereby embedding Open Science and inclusivity into the RI’s DNA..

Objective 7 – Secure long-term sustainability and growth of ELEXAI. Consolidate the governance, funding, and membership base of ELEXIS/ELEXAI to ensure continuity beyond project funding. This includes developing a revised business plan, expanding membership among European countries, reinforcing international cooperation, and strengthening links with industry. By addressing sustainability explicitly, ELEXAI will secure its position as a long-term pillar of the European Research Infrastructure landscape.

List of participants of the project «HORIZON EUROPE ELEXAI – European Lexicographic Infrastructure for Artificial Intelligence»:

Role

Participant organisation name

Country

1

Coordinator

Institut Jozef Stefan

Slovenia

2

Partner

Stichting Instituut voor de Nederlandse Taal

The Netherlands

3

Partner

Univerza v Ljubljani

Slovenia

4

Partner

Københavns Universitet

Denmark

5

Partner

University of Galway

Ireland

6

Partner

Eesti Keele Instituut

Estonia

7

Partner

Berlin-Brandenburgische Akademie der Wissenschaften

Germany

8

Partner

CLARIN ERIC

The Netherlands

9

Partner

ELTE Nyelvtudományi Kutatóközpont

Hungary

10

Partner

Borys Grinchenko Kyiv Metropolitan University

Ukraine

11

Partner

Det Danske Sprog- og Litteraturselskab

Denmark

12

Partner

Leibniz-Institut für Deutsche Sprache

Germany

13

Partner

«Lexical Computing CZ», SRO

Czechia

14

Partner

Universidad del Pais Vasco / Euskal Herriko Unibertsitatea

Spain

15

Partner

Università Cattolica del Sacro Cuore

Italy

16

Partner

Institute for Bulgarian Language Prof Lyubomir Andreychin

Bulgaria

17

Partner

Macedonian Academy of Sciences and Arts

North Macedonia

18

Partner

Universidade Nova de Lisboa

Portugal

19

Partner

Univerzitet u Beogradu - Rudarsko Geoloski Fakultet

Serbia

20

Partner

Mykolo Romerio Universitetas

Lithuania

21

Partner

Accademia Europea di Bolzano

Italy

22

Partner

Athena – Research and Innovation Center

Greece

23

Partner

Politechnika Wroclawska

Poland

24

Partner

 DARIAH ERIC

France

25

Affiliated

Belgrade Center for Digital Humanities

Serbia

26

Partner

ALT-EDIC

France

University Work Group for the implementation of the project “HORIZON EUROPE ELEXAI – European Lexicographic Infrastructure for Artificial Intelligence”:

  • Rusudan Makhachashvili, Doctor of Philology, Full Professor, Head of the Higher Education Internationalisation Research Laboratory – Project Coordinator;
  • Nataliia Vinnikova, Doctor of Philology, Full Professor, Vice-Rector for Research and International Affairs – Project Co-Coordinator;
  • Iryna Mankovska, Deputy Head of the Higher Education Internationalisation Research Laboratory – Work Group Member;
  • Nataliia Bober, PhD, Associate Professor, Associate Professor at the Department of Germanic Philology, Faculty of Romance and Germanic Philology – Work Group Member;
  • Iryna Bosenko, Chief Accountant – Work Group Member responsible for the project’s financial administration.

Web site: https://www.eurac.edu/en/projects/elexai

© 2026 Borys Grinchenko Kyiv Metropolitan University