{"generated_at":1787825280,"version":"1","listing_date":"2026-10-05","live":false,"unit":"USD per GPU-hour","contracts":[{"key":"h100","label":"Silicon Data H100 Rental Index","our_series":"h100-sxm","alongside":["h100-pcie"],"latest":null,"daily":[]},{"key":"b200","label":"Silicon Data B200 Rental Index","our_series":"b200","alongside":[],"latest":null,"daily":[]}],"basis_means":"basis = OUR median listed on-demand price minus THEIR settlement, in dollars per GPU-hour. Positive means the tape is quoting above where the contract settled; negative means it is quoting below.","what_we_publish":"Our median and the gap. We link to CME for their print, we key one settlement a day by hand, and their settlement is not a column in our CSV. Given our number and the gap, theirs is arithmetic — that is stated plainly rather than dressed up as protection. What it avoids is running a machine-readable mirror of a licensed series.","form_factor_warning":"Silicon Data's H100 index does not resolve to one form factor and ours deliberately do. The H100 basis is headlined against SXM and published against PCIe beside it, because the SXM/PCIe spread is usually wider than the basis itself.","reproduce":"/api/chip-index.csv for our side; CME for theirs; subtract"}