Horizon is TACC’s leadership supercomputer being sponsored by the NSF as the follow-on to Blue Waters. It is the supercomputing foundation for NSF LCCF.
As of 2024-08-21, its specs are all secret:1
TPM has hypothesized that Horizon will use VR200 superchips.2
It is the follow-on to the Frontera system will provide 10x its performance.3
It will be sited at an 85 MW colocation facility in Round Rock, TX operated by Sabey Data Centers.4
As of April 2025, its future is imperiled due to a funding standoff surrounding NSF in the US government.2