Combines programmable quantum processors with Qiskit tools, cloud job execution and device calibration records, giving developers a route from circuit design to experiments on hardware.
Record dates use UTC and show when an assessment or clarification was saved. Review dates show the evidence check. Earlier records were recovered from QubitWire’s source history; no earlier score movement is inferred.
Evidence or assessment clarified · axis ratings unchanged
Defines processor topology and revisions; Nighthawk r2 has 120 programmable qubits. Physical hardware elements must not be substituted for programmable-qubit capacity.
Source title
Processor types
Source publication date
Not recorded
Source type
Vendor technical documentation
Marked independent
No
Now
Defines processor topology and revisions. Nighthawk r2 has 120 programmable qubits; the separately reported 458 physical qubits are not its programmable circuit capacity.
Exploratory Nighthawk access and capabilities depend on plan and backend; a physics experiment does not establish commercial advantage across applications.
Now
Access, calibration and dynamic-circuit support depend on the selected plan and backend. The reviewed physics experiment does not establish commercial advantage across applications.
Evidence claim: IBM Quantum Compute Service changelog
Previously
January 2026 entries document Nighthawk early access for Premium/Flex and Heron r3 access for paid plans; April entries add Heron r2 to Open Plan. August entries document platform improvements.
Source title
IBM Quantum Compute Service changelog
Source publication date
Not recorded
Source type
technical
Marked independent
No
Now
IBM documents Open Plan Heron access and September 2026 Nighthawk r2 access for Premium, Flex and Pay-As-You-Go, including dynamic-circuit support on ibm_phoenix.
Superconducting gate-model processors and quantum cloud
Recorded aliases
No aliases recorded in this assessment.
Name and period
No dated name or ownership transition is recorded here. An alias is a search aid, not evidence of a legal ownership relationship.
Product scope
Superconducting gate-model processors; Heron uses a heavy-hexagonal layout and Nighthawk a square grid.
A company profile may discuss several systems. Capabilities remain attached to the product and conditions named in each source; they do not transfer automatically to related organizations. A verified security relationship has not been attached to this record.
Inspect the original source, the conditions and the dated claim record. Technical evidence stays separate from QRank’s editorial assessment and share-price performance.
IBM reports initial testing of its modular cryogenic prototype, with two cells coupled and operating together.
Cooling connected cells does not demonstrate fault-tolerant computation across chips. Deployment timing and future qubit capacities are plans, not measured computing outcomes.
IBM’s QOBLIB update describes a shared library of ten optimization problem classes for comparing quantum and classical methods.
A benchmark library is not evidence that quantum optimization has achieved practical advantage. This source check does not audit individual submissions or certify their reproducibility.
These source updates add context. QRank scores retain their existing assessment dates.
Anderon · Manufacturing award
NIST finalized a CHIPS R&D award of up to $1 billion for Anderon, IBM’s new subsidiary developing a quantum foundry in Albany. IBM reports that initial wafers are running.
Source checked Limits, research question & sources
The award supports manufacturing development; it does not establish a delivered quantum computer. Anderon is covered within IBM’s profile.
Question to follow: Which manufacturing milestone is funded, which has occurred, and which still needs customer or technical validation?
IBM Quantum · Manufacturing and planned deployment
IBM’s September announcements cover separate projects: Anderon’s Albany foundry and a planned System Two installation in Lugano, Switzerland, with ETH Zurich and Lockheed Martin.
Source checked Limits, research question & sources
The Swiss installation is planned for the end of 2026. Cloud access and a locally installed system are different delivery states.
Question to follow: Does each evidence entry identify the exact system generation, site and demonstrated rather than planned status?
DARPA’s new Stage C selections move four roadmaps into verification and validation. A selection is not an application-level result or a ranking of winners.
Source checked Limits, research question & sources
No automatic score change. Company releases describe the same programme event rather than independent tests.
Question to follow: What subsequent testing changes the proposed system’s assumptions?
These notes connect sources to the named organization. Published QRank assessments and their review dates remain unchanged.
Client-defined mitigation within a beta execution workflow · Beta software workflow
IBM's directed-execution documentation describes client annotations, templates and samplexes that an Executor turns into circuit variants for hardware execution and later post-processing. This gives a specific workflow for expressing mitigation choices.
Evidence boundary: The documentation identifies the feature as beta. A supported workflow does not establish universal access, a hardware-error reduction, or an end-to-end speedup; those require measurements for a defined task and resource boundary.
Context sources checked Dates, research question and original sources
The checked documentation describes the available workflow and beta conditions. Its source-check date is not a launch date or an assessment review date.
What is being evaluated: The documented client, execution and post-processing boundary.
Question to follow: For the same task and output-quality target, what changes when preparation, variants and post-processing are all counted?
Evidence to revisit: A versioned workflow benchmark reporting access conditions, full resources and an appropriate baseline.
Underlying research family: IBM directed-execution documentation.
A 2025 model experiment using IBM hardware · Hardware experiment in a defined model
The W-state scattering paper reports digital simulation of a one-dimensional Ising field theory using IBM quantum hardware. The model, state preparation and measured observables define the scientific result; IBM supplies the hardware used in this study.
Evidence boundary: The processor is not a physical particle collider. This study does not establish general classical disadvantage or a new October 2026 experiment, and hardware use does not make the provider the author of every scientific claim.
Context sources checked Dates, research question and original sources
The preprint was first submitted on 6 May 2025; the cited second version was posted on 30 October 2025. Later coverage retains that original research chronology.
What is being evaluated: Model observables and hardware resources in the stated simulation regime.
Question to follow: What would a controlled extension or matched classical baseline establish beyond this model and regime?
Evidence to revisit: A revised result, new controlled regime or matched comparison with the same success conditions.
Nighthawk r2’s speed comparison has a named baseline
IBM’s 31 August 2026 account describes Nighthawk r2 as available through IBM Quantum Platform, using independent qubit reset to increase circuit throughput relative to Heron. It distinguishes reset, gate quality and observable-estimation experiments.
What this establishes—and its limits
A throughput improvement against another IBM processor is not a general advantage over classical computing. The reported circuit demonstrations use particular protocols, including error mitigation.
Evidence to look for next
Check circuit structure, sampling, mitigation overhead and total workload time alongside the hardware comparison.
Sources reviewed . This review does not create or change a QRank assessment.
Superconducting gate-model processors; Heron uses a heavy-hexagonal layout and Nighthawk a square grid.
Who should look closer
Learning Qiskit and running initial hardware experiments. Researchers testing many-body simulation and error-mitigation workflows.
QubitWire’s editorial assessment of practical fit.
Open and paid cloud plans
IBM documents Heron r2 access on Open Plan. Its September 2026 changelog adds Nighthawk r2 ibm_phoenix for Premium, Flex and Pay-As-You-Go; access and supported instructions depend on the selected backend.
A Phasecraft-led preprint reports a disordered Heisenberg-model experiment on Nighthawk using up to 100 qubits. Error-mitigated results agree with classical calculations where those calculations remain reliable.
The experiment validates a particular physics workflow. Noise, sampling overhead and classical verification limits still matter; it does not establish a general commercial speed advantage.
The next question to watch
Can larger application experiments retain verifiable accuracy while reducing the full cost of sampling and error mitigation?
A research question, not a promised milestone.
QubitWire coverage
Research · Published · Source report · Sources checked
Nine projects received awards, but only one category had a first-place winner. IBM’s account also distinguishes hardware experiments from simulated final results.
Hardware · Published · Source report · Sources checked
C API compiler passes, circuit serialization and custom operations broaden the SDK. The 2.6.1 patch is already out, so migration checks should include it.
Hardware · Published · Source report · Sources checked
IBM’s latest earnings describe its wider business. The release does not isolate quantum sales, making the distinction essential for readers tracking the sector.
Research · Published · Source report · Sources checked
An IBM experiment steers deliberately scrambling quantum circuits toward order. Resetting a system and keeping its information safe remain different achievements.
Research · Published · Source report · Sources checked
An October 6 preprint finds coherence in a complete three-time process even when pairwise tests miss it. An IBM hardware demonstration shows why a quantum diagnostic needs an explicit scope.
Business + Policy · Published · Source report · Sources checked
A company-reported beta software release makes quantum error-mitigation workflows inspectable and customizable while leaving hardware noise and sampling cost intact.
Open research questions
Editorial questions for this profile. No reviewed closure decision has been recorded; unanswered questions do not lower the official score.
Open research question
Can larger application experiments retain verifiable accuracy while reducing the full cost of sampling and error mitigation?
What evidence would help
A source addressing this question must identify the named system, experiment or deployment, its conditions, measured outcome and remaining limitations. Does the result report errors, circuit depth and a credible classical baseline?
What would resolve it?
An editorial review must explain which part of this question the evidence resolves. A roadmap or an announcement alone does not close it.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Which named system or service can I use under the documented access route?
What evidence would help
Check the current terms for open and paid cloud plans. Identify the system version, eligibility, restrictions and whether the result used hardware or simulation.
What would resolve it?
Current primary documentation must identify the offering, eligible user and access conditions. An unspecified company-level access claim is insufficient.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Can you access the named system today, and under which plan?
What evidence would help
Provide the source location, relevant product or generation, workload, resource constraints and reported uncertainty. Keep measurements, simulations and announced targets distinct.
What would resolve it?
A source reviewer must map the evidence to this exact scope. Missing disclosure remains unknown; it is not technical failure.
No resolved, partial or disputed outcome is asserted without a reviewed transition and its evidence.
Questions are drawn from the existing brief and sector reading guide. Research brief reviewed 7 Sept 2026. Following stores a local bookmark; it does not send email alerts or imply a scheduled review.
Since your review
Scope: IBM Quantum. Reading a page never marks its records reviewed.
Keep a baseline and explicitly mark the evidence you have reviewed. This optional journal stays in this browser.
Existing material records remain available after setup. Routine rechecks and initial entries are excluded from material counts.
These are the existing assessment claims and their recorded criterion links. A source link is not an independent replication. New research does not change these published ratings automatically.
IBM documents Open Plan Heron access and September 2026 Nighthawk r2 access for Premium, Flex and Pay-As-You-Go, including dynamic-circuit support on ibm_phoenix.
Researchers report digital quantum simulation of a disordered Heisenberg model on IBM Nighthawk using up to 100 qubits, with agreement against classical methods in accessible regimes.
Repeated coverage can describe the same experiment. The assessment does not contain a reviewed claim-family grouping, so the number of links is never shown as a replication count. Source pages can change independently of this saved assessment; the original source text is not archived here.
IBM documents Open Plan Heron access and September 2026 Nighthawk r2 access for Premium, Flex and Pay-As-You-Go, including dynamic-circuit support on ibm_phoenix.
Researchers report digital quantum simulation of a disordered Heisenberg model on IBM Nighthawk using up to 100 qubits, with agreement against classical methods in accessible regimes.
IBM documents a third-party Q-CTRL integration, including circuit submission and result retrieval workflows.
Processor types ↗Vendor technical documentation · Publication date not stated
Defines processor topology and revisions. Nighthawk r2 has 120 programmable qubits; the separately reported 458 physical qubits are not its programmable circuit capacity.
NIST finalized a CHIPS R&D award of up to $1 billion for Anderon, IBM’s new subsidiary developing a quantum foundry in Albany. IBM reports that initial wafers are running.
NIST finalized a CHIPS R&D award of up to $1 billion for Anderon, IBM’s new subsidiary developing a quantum foundry in Albany. IBM reports that initial wafers are running.
IBM’s September announcements cover separate projects: Anderon’s Albany foundry and a planned System Two installation in Lugano, Switzerland, with ETH Zurich and Lockheed Martin.
DARPA’s new Stage C selections move four roadmaps into verification and validation. A selection is not an application-level result or a ranking of winners.
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