NIPA (Kakao)

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: 69.10 PFlop/s
Rpeak: 78.65 PFlop/s
Rmax ÷ Rpeak: 87.9%
Cores: 36,720
Power: -
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	- Supermicro SYS-A22GA-NBRT	Supermicro SMCINASDAQ	-	Reported	top500.org
Accelerator	NVIDIA B200 SXM Accelerators CUDA (Blackwell) · TSMC 4NP · 1,000 W 2,040 NVIDIA B200 GPUs (of a planned 2,424); omitted from TOP500's own listing	NVIDIA NVDANASDAQ	-	Verified	top500.org kakaocorp.com
CPU	Intel Xeon 6 6900P (Granite Rapids) CPUs x86-64 · 128C · 2 GHz · Intel 3 · 500 W Xeon 6960P 72C 2.7GHz	Intel INTCNASDAQ	-	Reported	top500.org
Interconnect	NVIDIA InfiniBand NDR (Quantum-2) Interconnect Fat tree or dragonfly+ · 400 Gb/s per port · Under 0.6 microseconds Infiniband NDR400	NVIDIA NVDANASDAQ	-	Reported	top500.org

AI datacenter metrics

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

Metric	Value	As of	Basis	Note	Source
Accelerators	2,040 accelerators	2025-12	Operator stated	Kakao: infrastructure done for 255 nodes (2,040 B200 GPUs), about 84 percent of 2,424 planned, at Kakao Ansan data center.	kakaocorp.com

The read

Kakao's share of the same NIPA national GPU program that also funds NHN Cloud's two clusters. TOP500's own record for this system is anomalous: it lists only a CPU (Intel Xeon 6960P) and no accelerator at all, an omission inconsistent with its Rpeak figure. Kakao's own corporate page and an independent Korean outlet (AI Times) both confirm 2,040 NVIDIA B200 GPUs; the core count recorded here is TOP500's own CPU-only figure, carried as-is rather than corrected, with the accelerator fact sourced independently.

Timeline

2025-08 Announced source
2026-01 First operational source
2026-06 List debut at #39 (June 2026) source

Public list appearances

Pointers only: rank and edition, linking to the canonical entry. We do not reproduce list tables. See sourcing policy.

#39: TOP500, June 2026 →

Site & facility

Kakao (Ansan)

Location: Ansan, South Korea
Commissioned: 2025

kakaocorp.com

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.

Every source cited on this page was readable, and none of them mentions this system. They are cited at page granularity, normally because no stable deep link could be found. That is a real weakness in this row and it is why the system carries a confidence tier below verified. See how this check works.

Cited source	Result	Found on the page
top500.org	does not name this system	Intel Xeon 6 6900P (Granite Rapids), NVIDIA InfiniBand NDR (Quantum-2)
kakaocorp.com	does not name this system	NVIDIA B200 SXM

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