COMPUTE ATLAS Supercomputer supply-chain graph
1153 systems 482 sites Sourced data

Supercomputers/Systems/KarolAIna

Czechia · planned · mixed

KarolAIna

Also known as Czech AI Factory supercomputer

Operated by IT4Innovations at IT4Innovations, Ostrava .

Phase 1 seed dataset, compiled by hand. These rows were built from public operator, laboratory and vendor sources. A mechanical second-reader pass has since fetched every cited source: 1092 of 1153 systems have a readable citation that names them, and 40 are genuinely weakly sourced. Every claim carries its source and a confidence tier. Treat anything below verified as a lead, not a citation.

Measured performance

Rmax
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Rpeak
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Rmax ÷ Rpeak
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Cores
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Power
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Per watt
- GF/W

Figures are as last publicly reported for the configuration described below, not a live measurement. Where a system was upgraded in place, the post-upgrade configuration is shown and the earlier one appears in the timeline.

What this machine is made of

One row per supplier relationship. “Supplier at build” is the company that shipped the part at the time; where that company has since been acquired, the parent it rolls up to today is shown beside it. That distinction is what makes ticker-level aggregation possible across a thirty-year dataset.

Role Part Supplier at build Quantity Confidence Source
Integrator -
IT4Innovations hosts and operates the system, about 340 AI chips delivering up to 850 PFlop/s of AI performance
IT4Innovations
- Reported e-infra.czciirc.cvut.cz

AI datacenter metrics

Figures beyond an accelerator count, each with who stated it. What can and cannot be compared across AI datacenters.

MetricValueAs ofBasisNoteSource
Accelerators 340 accelerators 2026-10 Operator stated Approximately 340 AI chips per IT4Innovations and CIIRC CTU (one joint press release). Chip model not published. e-infra.czciirc.cvut.cz

The read

The AI-optimised supercomputer at the core of the Czech AI Factory (CZAI), hosted and operated by IT4Innovations beside the Karolina system. IT4Innovations and CIIRC CTU both state it will run on approximately 340 AI chips for up to 850 PFlop/s in AI operations, with about half of the roughly EUR 40 million project budget going to the machine and EuroHPC using 50 percent of its computing time. Vendor, chip model, power and delivery date are not published, so no hardware part edges are recorded and the 850 PFlop/s figure (an AI-precision peak) is deliberately not entered as a FLOPS value. The two pages derive from one joint CZAI press release.

Timeline

Site & facility

IT4Innovations, Ostrava

Location
Ostrava, Czechia
Cooling
Direct liquid cooling
Commissioned
2013

Change history

Source check

We fetched this system's own citations and recorded whether each page actually mentions it. This is a corroboration signal, not a fact check, and it is published so you can see how well the sourcing holds up rather than take it on trust.

Cited sourceResultFound on the page
ciirc.cvut.cznames system only-
e-infra.cznames system only-

Checked 2026-10-09 by pnpm verify. Re-run it and the table changes with the web.

Further reading