Introducing The Quantum Infrastructure Cloud
QCOS BenchAdd-on

Operational Quantum Performance Certification

Measure what matters: workload success, reproducibility, and operational stability. Not vendor claims — empirical evidence from your actual executions.

Important: QCOS Bench does not measure physical qubit properties (T1, T2, gate fidelity). We measure observable operational performance — what you can actually verify from job execution.

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Requires QCOS PlatformML-DSA Signed EvidenceSLSA Level 3 Provenance

Operational Metrics

These metrics measure observable execution outcomes — what you can empirically verify from your quantum jobs.

Operational Fidelity Score (OFS)

Workload success rate under real execution conditions

Measures actual job success, not theoretical gate fidelity

Reproducibility Index (RI)

Variance when repeating identical workloads

Statistical consistency across multiple runs

Drift Coefficient (DC)

Performance stability over time

Detects degradation before SLA violation

Effective Circuit Depth (ECD)

Maximum useful depth before output collapses

Practical depth limit for your workloads

Queue Volatility (QV)

Wait time predictability

Operational scheduling reliability

Cost-to-Success Ratio (CSR)

Economic efficiency per successful execution

FinOps metric for budget planning

Benchmark Suite

Standardized Workloads

Versioned, reproducible benchmark circuits. Same tests, any backend, comparable results.

GHZ Scaling Suite

5q → 200q

Test backend scaling characteristics

Fidelity decayGate count scalingExecution time

Depth Stress Test

Variable depth

Find effective circuit depth limit

ECD thresholdError accumulationCollapse detection

Noise Sensitivity Probe

Parameterized

Measure noise sensitivity under variation

Variance envelopeStatistical stabilityOutlier rate

Reproducibility Battery

Identical reruns

Validate determinism and consistency

Shot-to-shot varianceDay-to-day driftRI score
How It Works

Methodology

Execute → Measure → Analyze → Certify. All evidence cryptographically signed.

1

Standardized Workloads

Execute predefined benchmark circuits across backends. GHZ scaling, depth stress, noise probes — all versioned and reproducible.

2

Execution Telemetry

Capture success probability, variance, queue time, and runtime. Every data point timestamped and signed.

3

Temporal Drift Analysis

Track performance over time. Detect degradation against historical baselines. Alert on threshold crossings.

4

Evidence Generation

Produce cryptographically signed artifacts. ML-DSA post-quantum signatures. SLSA Level 3 provenance.

NEW IN V3

Evidence Durable

Store, sign, and verify benchmark evidence with cryptographic integrity. Built for procurement, audit, and regulatory compliance.

  • Ed25519 signatures (ML-DSA post-quantum ready)
  • Tamper-evident storage with hash chains
  • Offline verification — no SoftQuantus dependency
  • SaaS, VPC, or sovereign deployment options
Learn MoreProcurement Pack →
Evidence Pipeline
1Run
2Bundle
3Store
4Sign
5Verify
$ qcos bench verify ./evidence.tar.gz
✓ Signature valid • Hash chain intact
Important Clarification

What QCOS Bench Is Not

Scientific honesty matters. Here's what we cannot and do not measure.

QCOS Bench measures T1/T2 coherence times

We measure operational success rates, not physical qubit properties. T1/T2 are vendor calibration metrics — we measure what you actually care about: does your workload succeed?

QCOS Bench certifies quantum hardware quality

We certify operational performance from the user's perspective. We cannot access or measure physical qubit properties — only observable execution outcomes.

QCOS Bench replaces vendor benchmarks like Quantum Volume

QV is a vendor-defined metric. We provide complementary operational metrics based on real workloads, not synthetic protocols.

Who It's For

Built for Evidence-Driven Teams

Enterprise R&D Teams

Validate backend performance before committing production workloads. Make data-driven backend selection decisions.

Procurement & Due Diligence

Independent evidence for hardware acquisition decisions. Not vendor-provided benchmarks — empirical data from your workloads.

QA & Release Engineering

Continuous monitoring of backend performance. Detect drift before it affects production. Automated alerting on SLA thresholds.

Research Publications

Reproducible benchmarks with signed evidence bundles. Third-party verifiable for peer review.

Pricing

Add-on to QCOS Platform

QCOS Bench is available as a subscription add-on or pay-per-run for existing QCOS customers.

Pay-per-Run

For occasional benchmarking needs

  • All standardized workloads
  • Signed evidence bundles
  • Comparison reports
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Continuous Monitoring

For production environments

  • Automated scheduled runs
  • Drift detection & alerting
  • Historical trend analysis
  • SLA threshold enforcement
Request Demo

Evidence-based quantum performance

Stop relying on vendor benchmarks. Start measuring what actually matters for your workloads.

Request DemoQCOS Platform →

Get benchmarking insights

Operational quantum performance data, methodology updates, and industry comparisons.