Methodology.

1.Source hierarchy

Each provider entry is sourced first from the provider's primary pricing documentation. AWS Braket and Azure Quantum publish complete per-shot, per-task, per-program, and subscription pricing on public docs pages that respond to automated HTTP GET — these account for 12 of the 18entries on this site. IBM Quantum's pricing page (cloud.ibm.com / pricing) returns HTTP 403 to non-browser user agents as of 2026-06-03; the IBM rates we cite are drawn from the IBM Quantum Flex Plan announcement blog and an independent research note by Moor Insights & Strategy.

2.Verification status

Three labels are applied. verified-primary indicates the figure was retrieved directly from the provider's pricing page on the verification date. industry-reported indicates the provider's pricing page is non-public or 403-protected and the figure is corroborated by at least one dated 2026 third-party analyst note. quote-only indicates no public 2026 list price exists. We do not invent figures or republish stale industry-report numbers without a date.

3.Comparability caveats

AWS Braket per-shot, Azure Quantum per-program, and IBM Quantum per-minute pricing cannot be compared by inspection of the unit price alone. We compute representative circuit costs on the homepage (Table 2) to allow direct cross-provider comparison. A 100-shot pilot circuit and a 10,000-shot characterisation run are the two canonical representative sizes; for variational workloads (VQE), we use the 200,000-shot envelope cited in vendor tutorials.

4.Currency conversion

Pasqal Fresnel on Azure is priced in EUR (3,000/QPU-hr). We convert to USD at a fixed 1.07 USD/EUR rate on the verification date, document the conversion alongside the figure, and re-verify when the verification cadence triggers.

5.Fidelity reporting

Two-qubit gate fidelities are reported from peer-reviewed publications where available, vendor-published spec pages otherwise. Where vendors quote research-grade results (e.g. IonQ's 99.99% two-qubit gate via electronic qubit control), we label the entry as a research result and do not conflate it with production hardware fidelity. The Quantinuum H2 99.8% two-qubit fidelity is the most-cited production figure and traces to the September 2024 Microsoft + Quantinuum 12-logical-qubit announcement.

6.Re-verification cadence

Every dated row carries a verifiedOn field. The site's pre-deploy gate blocks publication of any row older than 90 days. Provider pricing pages are re-fetched on a 30-day cycle for high-volatility entries (Braket, Azure) and a 90-day cycle for stable entries.

7.Conflicts of interest

quantumcomputingcost.com has no affiliate revenue, no vendor sponsorships, no paid placement. We do not accept payment for inclusion, ranking, or favourable language. Digital Signet, the owner of the site, has no investment position in any quantum hardware vendor.