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See when quantum computers will deliver business value, and for which applications.

Every hardware vendor’s specifications, roadmap milestones and slippage record. Every MERIQ use-case scorecard with its binding constraint, its horizon, the classical method it has to beat and what a better answer is worth. Every public quantum company’s filings read for what they say about whether the roadmap is funded. One dataset, maintained, with a date and a citation on every number.

Subscribe, or request a trial Built for the person who has to brief a board on quantum computing and cannot afford to repeat a vendor’s press release. Tell us what you are deciding and we will get back to you within one business day.

Inside the platform

Six views over one corpus, dataset of 2026-09-30. The joins between them are the point: a hardware milestone that moves changes a use-case window, and a use-case requirement is what makes a milestone worth watching. Below, each view in its own shape — names, titles and dates as the platform shows them; the figures and the analysis are the subscription.

Preview · 3 / 12 · Vendors tracked
VendorModalityFlagship systemPhysical qubitsLogical qubits2-qubit errorQUOPS scoreQUOPS/sClockConnectivityError correctionNext milestoneAs of
Atom ComputingNeutral atom—
Google Quantum AISuperconductingWillow
IBM QuantumSuperconductingHeron r3 (ibm_boston)

The remaining rows, every figure and the analysis are part of the subscription.

Preview · 8 / 70 · Dated milestones
Eight vendor milestones on a time axis 2024 to 2030. Filled markers are demonstrated results; open markers are projections; a grey tail runs from a milestone's first-announced date to its current date. 2024202520262027202820292030 dataset 2026-09-30 Quantinuum C4-Helix fault-tolerant architecture on Helios · 2026-09 IBM Quantum Nighthawk · 2026-01 Nighthawk at 7,500 gates · 2026-08 IonQ #AQ 64 on a Tempo development system · 2025-09-25 qLDPC memory at breakeven · 2026-06-04 Rigetti Cepheus-1-108Q at 99.5% median two-qubit fidelity · end 2025 → 2026 · slipped Pasqal 10,000 qubits (2024 roadmap) · 2026 → 2027 · slipped QuEra Third-generation error-corrected system · 2026 → Libra, 2028 · revised
demonstrated projected, vendor-reported first-announced date, kept

Milestone titles and dates shown; the capacity chart, the metrics and the notes are part of the subscription.

Requirement curve · rsa2048-physical · 5 points
Physical qubits estimated to break RSA-2048, on a logarithmic axis from one thousand to one billion, 2010 to 2036: one billion in 2012, twenty million in 2019, under one million in 2025, about one hundred thousand in 2026, and a dashed JoS extrapolation to about 4,700 in 2035. A grey band marks the plausible convergence window 2031 to 2035. convergence window 2031–2035 JoS estimate, an envelope 10⁹10⁸10⁷10⁶10⁵10⁴10³ 20122019202520282033 physical qubits to break RSA-2048 · published estimates, status demonstrated roadmap capacity envelope · values in the subscription 1 billion · Fowler et al. 2012 · peer-reviewed 20 million · Gidney & Ekerå 2019 · peer-reviewed under 1 million · Gidney 2025 · company-reported ~100,000, in months · Cain et al. 2026 · company-reported ~4,700 by 2035 · JoS extrapolation, at the floor
published estimate JoS extrapolation, labelled as ours convergence window, JoS estimate
score history usecase · sketched-streaming-fraud
2026-04-01 52 → 60 · quantum oracle sketching + shadow readout · data basis moved 2 → 3

The curve is read against the vendor roadmaps inside the platform; the vendor capacities, the use-case thresholds and the notes behind each point are part of the subscription.

Preview · 3 / 22 · Use cases assessed
Use caseCategoryIndustryTotalLevelBinding constraintHorizonLogical qubits
Designing a nitrogen-fixation catalyst (FeMoco)Simulation
Hamiltonian simulation
chemicals, energy
Elliptic-curve cryptanalysis (secp256k1)Cryptanalysis
Discrete logarithm
security, finance
Exotic derivatives pricingSimulation
Monte Carlo simulation
finance

One complete record from the MERIQ whitepaper v1.0, as corrected in October 2026:

usecase · sketched-streaming-fraud
▶ MERIQ scorecard          V  A  D  F  R   total  level
  ───────────────────────────────────────────────────────────────────
  sketched streaming        4  3  3  2  3      60  L2 Conceptual
  fraud detection
  ▶ binding                 F  — the route has not yet run end to end
  ▶ verdict                 datable, conditionally
  ▶ horizon                 early fault-tolerant · 2029–2031

▶ score history
  2026-04-01   52 → 60   quantum oracle sketching + shadow readout
               data basis moved 2 → 3 (the route stopped needing QRAM),
               advantage and resources a rung each behind it;
               feasibility fell 3 → 2 until the route runs end to end.
               The variational card it supersedes still reads 52 — a
               new access model is a new triple, not a better score.

▶ classical baseline       gradient-boosted trees and neural nets
  performance              about 1 ms per transaction   [company-reported]
  to beat                  more fraud caught at the same false-positive
                           rate as the production ensembles
▶ value                    loss avoided · a large European card issuer
  at stake                 €10m–€100m a year            [JoS estimate]
  quantum share            none attributable yet: the proven gain is
                           memory, and a scoring stack is not memory-bound

▶ requirements             < 60 logical qubits          [published estimate]
  binding resource         logical-gate throughput, not qubit count

▶ earliest plausible window
  trapped ion              2029–2031   capacity is not the constraint —
                                       Helios already runs 48 logical;
                                       gate speed is
  superconducting          2029–2032   µs cycle times suit a stream;
                                       decoder latency is the open question

Read what the last block is doing. It is not a forecast. It is a human comparison of a published requirement against dated vendor milestones, stored with its reasoning, so you can disagree with the reasoning rather than with a number. Deriving those windows mechanically from vendor roadmaps would turn marketing into prediction, which is the one thing this dataset is built not to do.

The remaining rows, every score and the rationales are part of the subscription.

Preview · 3 / 9 · Companies followed

Alphabet Inc.

NASDAQ:GOOGL
Metric
Revenue
R&D expense
Cash and equivalents
Liquidity
Runway [JoS estimate]

filings index   earnings-call quotes   commentary

Infleqtion, Inc.

NYSE:INFQ

International Business Machines Corporation

NYSE:IBM

Company names and tickers shown; the figures, the filings index, the quotes and the commentary are part of the subscription.

Change record · 2026-09 · 3 of 6 headline entries
  1. 2026-09-30milestone_newvendor:ibm●●●

    Three July preprints on IBM hardware sit on the public advantage tracker as active candidates; one of their instances has since been simulated classically.


  2. 2026-09-30spec_updatevendor:quantinuum●●●

    Quantinuum runs the C4-Helix code on Helios: logical Cliffords at 2.8e-4, 4.3 times below the physical gate, with no post-selection.


  3. 2026-09-30milestone_newvendor:ionq●●●

    IonQ launches Superion 256, its first chip-based system: 256-qubit QPUs fabricated at SkyWater, orders open, deliveries in 2027.


Quarterly brief · 2026-Q3 · 2026-09-30

Q3 2026: one benchmark axis, three kinds of logical qubit, and a cheaper RSA


benchmarksfault-tolerancecryptanalysislistingsuse-cases

Headlines shown; the notes, the full record and the briefs are part of the subscription.

Also in the platform: Hardware basics, a referee-checked explainer of qubits, gates, error correction and seven hardware technologies with a use-case × technology matrix, glossary and simulators — readable in full on a free account.

Two add-ons, for a second question

Intelligence is the core. Two tools from our own research sit next to it on the same account and the same invoice, switched on per account on an annual subscription, on request.

Add-on · Labs · RISQ and the Shor estimator

RISQ: business risk, estimated two ways

Model a network of business risks — events, their probabilities, the dependencies between them — and estimate the tail two ways side by side: classical Monte Carlo and quantum amplitude estimation, with the same loss metrics from both: expected loss, VaR, CVaR. A sensitivity ranking orders the risk drivers by how far each one moves the result. The method is our paper, arXiv:2103.05475. The Shor estimator ships in the same module: from an RSA key size to logical and physical qubits, runtime and the roadmap year, with the error-correction sizing shown.

risq.jos-quantum.deBenchmark · precision crossover
Log-log chart of estimation error against evaluations. Monte Carlo error falls with the inverse square root of the sample count; amplitude estimation error falls with the inverse of the query count; the two lines cross at the precision crossover. 10⁻¹10⁻²10⁻³10⁻⁴ 10²10³10⁴10⁵10⁶ estimation error ε against evaluations M · scaling laws, illustrative constants precision crossover Monte Carlo · ε ∝ M−1/2 amplitude estimation · ε ∝ M−1

Halving the error costs Monte Carlo four times the samples and amplitude estimation twice the queries. The platform fits the measured convergence of your own model and locates where the two cross; the sensitivity analysis then adds the second quadratic, over the number of drivers.

Who it is for
Risk quants and model-validation teams who want to see where amplitude estimation stands against Monte Carlo on their own risk structure; security and cryptography teams putting a date on a post-quantum migration.
Try it
Reduced versions of both run in your browser, without an account: Risk demo → Shor demo →
Add-on · Wallet exposure · Bitcoin and Ethereum

Wallet exposure: what the chain already gives away

An address goes in; an exposure tier comes out, derived from what the chain actually holds. Where the public key is on chain, a large enough quantum computer could attack it at leisure; where only its hash is, it cannot. Taproot addresses are exposed from the moment they are funded, because the address is the key. Each verdict carries its evidence, the migration steps that apply today and those that wait for post-quantum schemes, and a threat timeline built from the published resource estimates in the Intelligence corpus.

intelligence.jos-quantum.deWallet exposure · verdict
ExposedHash shieldedContract accountNot activatedUndefined typeNot determined
Address kindWhat the chain holdsNever spentHas spent
Bitcoin P2PKH, P2WPKH 1… bc1q…a hash of the keyHash shieldedExposed
Bitcoin Taproot bc1p…the tweaked output key itselfExposedExposed
Ethereum account 0x…, no codea hash of the keyHash shieldedExposed
Ethereum contract 0x…, has codecode and storageContract accountContract account

The tier says what is exposed, not when it will be attacked: no machine able to break secp256k1 exists today. The check reads public chain data only. It never asks for a private key, a seed phrase or an extended public key, and refuses one if it is pasted.

Who it is for
Custody, treasury and compliance teams holding Bitcoin or Ethereum on their own keys or for clients, who need to say which holdings are exposed and in what order to move them. In preparation: bulk checks across an address list, and monitoring.
Read more
The Shor demo runs the resource model behind the threat timeline; our account-type analysis of Bitcoin and Ethereum sets out the reasoning behind the tiers.

Both add-ons require an annual Intelligence subscription and are priced on request. Ask from your account page or by e-mail; we add the item to your subscription and it switches on for your account. Module details on the product page →

The conventions we hold ourselves to

A paid intelligence product is only worth its provenance discipline. These are enforced in the data layer, not left to editorial care: there is no way to record a number in this dataset without its status, its basis and its date — the schema refuses it, and the service refuses to start if a citation does not resolve.

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