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HORIZON-CL4-2026-04-HUMAN-02

Web 4.0 architectural framework and Open Internet Stack applications for virtual worlds

RIACluster 4€16,800,00015 Apr 2026
Topic CodeHORIZON-CL4-2026-04-HUMAN-02F&T Portal
Call IdentifierHORIZON-CL4-2026-04Call — DIGITAL (single stage)
InstrumentHORIZON-RIAResearch and Innovation Action
Budget ModelActual CostsStandard MGA
Funding Rate100%Annex G — RIA = 100%
Page Limit (Part B)40 pagesRIA + actual costs (Annex A)
Evaluation Thresholds3 / 3 / 3 · cum. 10Balanced portfolio procedure
Expected Projects3€2.8–8.4M each (WP stated)
DestinationDigital and industrial technologies driving human-centric innovationWP Part 7
Cluster / PillarCluster 4 / Pillar IIDigital, Industry and Space
China EligibilityExcluded ▲RIA excluded; EU comms restrictions
Special ConditionsBalanced portfolio ▲FSTP allowed; EU comms restrictions apply
Verify: Open this topic on the F&T Portal →  ·  Sources: General Annexes 2026-2027, WP Part 7
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Chinese entities are excluded from RIA under this destination.
Balanced portfolio procedure applies. Grants awarded not only by ranking but to ensure coverage across different approaches. FSTP is allowed. EU communications network restrictions apply.

Expected Outcomes

  1. A Web 4.0 architectural framework is developed, providing the foundation for open, interoperable, and decentralised virtual worlds built on the Open Internet Stack.
  2. Applications for virtual worlds leveraging the Open Internet Stack are demonstrated, enabling European-sovereign immersive digital services.

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