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# JUPITER becomes Europe's first exascale supercomputer, reaching 1 exaflop
- URL: https://sovereigntymonitor.eu/news/2025-11-17-jupiter-exascale-milestone/
- Published: 2025-11-17T12:00:00.000Z
- Updated: 2026-10-11T16:01:21.000Z
- Description: JUPITER, hosted at the Julich Supercomputing Centre in Germany, officially reached 1 exaflop, Europe's first exascale system and the world's number four on the TOP500 list. It runs on about 24,000 Nvidia GH200 superchips and ranks as the most energy efficient exascale machine.
- Author: Reidar Balstad
- Tags: Compute and infrastructure, #news, #verified, #editor-read

Verified Editor-read [EuroHPC Joint Undertaking press release, 17 November 2025](https://www.eurohpc-ju.europa.eu/jupiter-officially-propels-europe-exascale-era-2025-11-17%5Fen?ref=sovereigntymonitor.eu)

**What it does not test.** Does not establish that the planned JUPITER AI Factory is yet operating at full capacity for external users.

**How this item counts.** This item is dated before the index starts on 1 January 2026, so it does not count in the [European Sovereignty Index](https://sovereigntymonitor.eu/sovereignty-index/).

**How this item was made.** Drafted by an AI system (Claude (Anthropic)) from the source cited above; read and approved by the editor on 2026-10-11\. [How the record is made](https://sovereigntymonitor.eu/method/#how-the-record-is-made)