License QECTOR for Production
Free for academic and non-commercial research. For commercial use, pick a plan: licences are verified offline and work fully air-gapped, cancel any time, 14-day money-back on your first payment.
Air-gapped
Signed token, verified offline. No licence server, no phone-home.
14-day money-back
Full refund on your first payment of any plan, no questions asked.
Cancel any time
Your licence stays valid to the end of the period you paid for.
Commercial Plans
Production rights for your organisation's internal use. Subscriptions renew automatically until cancelled.
Or $790/year (2 months free). Pro licence tier.
- Included: Commercial internal use
- Included: All decoder families
- Included: CPU + GPU (CUDA/OpenCL) batch
- Included: Code distances up to 19
- Included: Email support (2 business days)
Enterprise licence tier, for research groups and labs.
- Included: Everything in Pro
- Included: Code distances up to 63
- Included: Priority support with SLA
- Included: 2-hour onboarding call
- Included: One Validation Report ($5,000 value)
Redistribution, SaaS, OEM and custom terms.
- Included: Signed agreement, custom terms
- Included: SaaS and customer-facing APIs
- Included: OEM and hardware bundling
- Included: Named support engineer
Pro billed yearly: $790 / year. Prefer to own it? Pro Perpetual: $1,990 one-time (every 1.x release, 12 months of support).
QECTOR Validation Sprint
$3,750 one-time · 10-20 days delivery
The recommended fast-track for teams seeking immediate, defensible proof of workflow value. We execute up to 3 standard benchmark workloads using QECTOR and deliver reproducible artifact bundles.
- ✓ Includes a 60-day Pilot licence
- ✓ Comparative analysis vs PyMatching/Stim
- ✓ 60-minute results review call
Need only the licence and a call? The 60-day Pilot is $1,500: a 1-hour integration call and a written validation memo, 100% creditable toward Lab within 90 days.
Activating Your License
Everyone installs the same wheel from PyPI: there is no separate commercial build. Your token unlocks the paid features: GPU (CUDA/OpenCL) batch decoding on every paid plan, and code distances up to 63 on Lab and Enterprise. CPU decoding is never blocked; distance caps are enforced only when you set QECTOR_ENFORCE=1.
pip install --upgrade "qector-decoder-v3>=1.0.1,<2"
export QECTOR_LICENSE_KEY="<your-token>"
export QECTOR_LICENSE="<your-token>"
# Verify offline: prints Pro or Enterprise
python -c "import qector_decoder_v3 as q; print(q.get_license_info()['tier'])"Tokens are verified offline against a public key embedded in the package: no license server, no phone-home, works completely air-gapped.
Why License QECTOR?
| Free (Source-Available) | Licensed (Commercial) |
|---|---|
| Non-commercial research use only | Internal R&D and production rights |
| Community support (GitHub Issues) | Priority email support & SLAs |
| QECTOR Workbench GUI (Free) | Validation artifact reproduction harnesses |
| PolyForm Noncommercial License | Written Commercial License Agreement |
Frequently Asked Questions
Does licensing work on air-gapped machines?
Yes. A licence is a signed token verified offline against a public key built into the package. There is no licence server, no activation step and no network call, so it works on isolated and air-gapped systems.
How is the licence delivered, and what does the token unlock?
By e-mail within minutes of payment (check spam, then write to [email protected] with your Stripe receipt). Everyone installs the same wheel: pip install --upgrade "qector-decoder-v3>=1.0.1,<2". Set QECTOR_LICENSE_KEY and QECTOR_LICENSE to the token. Every paid plan unlocks GPU (CUDA/OpenCL) batch decoding; Lab and Enterprise also raise the code-distance tier to 63. CPU decoding is never blocked, and distance caps are only enforced if you set QECTOR_ENFORCE=1.
Can I try it before committing?
Every plan carries a 14-day money-back guarantee on the first payment: buy Pro monthly, run it on your own workloads, and if it is not right write to [email protected] for a full refund. For a structured evaluation with an integration call, take the 60-day Pilot, which is fully creditable toward Lab.
Do plans renew automatically, and how do I cancel?
Yes. Pro (monthly or annual) and Lab renew automatically until cancelled, with a reminder e-mail 14 days before each annual renewal. Cancel any time from your Stripe receipt or by writing to [email protected]; your licence stays valid until the end of the paid period. Pro Perpetual and the Pilot are one-time payments and never renew.
What is your refund policy?
14-day money-back guarantee on your first payment of any plan: write to [email protected] with your Stripe receipt and we refund it in full. Renewals are not refunded pro rata. Duplicate purchases and charges made in error are always refunded. If a token never arrives or fails to verify, we reissue it at no cost. This does not limit non-waivable statutory rights.
What does a licence cover?
Internal commercial use by your organisation, including production. Pro and Lab differ in licence tier (Lab raises the code-distance tier to 63) and support level. Pro Perpetual covers every 1.x release of qector-decoder-v3; a new major version such as 2.0 is a new licence. The Pilot is for evaluation (benchmarking, integration testing, threshold studies), not production.
Is a hosted or customer-facing API covered?
No. Pro and Lab cover internal use on your own infrastructure. As soon as QECTOR sits behind an API, product or service that anyone outside your organisation can reach, that is SaaS or redistribution and needs an Enterprise/OEM agreement. Internal endpoints used only by your own staff are fine. Unsure? Describe the deployment to [email protected].
Can I redistribute QECTOR inside my product?
Only under an Enterprise/OEM agreement, which covers redistribution, SaaS hosting and hardware bundling. Write to [email protected].
Do I need a licence for non-commercial research?
No. Personal, academic and other non-commercial use is free under the PolyForm Noncommercial License 1.0.0. Universities, public research organisations, charities and government institutions may also use it free, whatever the source of their funding. A company using QECTOR, including on a contract with a university, needs a paid plan. Academic institutions that want a paid plan anyway, for support or to pass commercial rights to an industry partner, get 40% off Lab with an institutional e-mail.
What currency are prices in, and is tax included?
Prices are in US dollars and exclude tax. Applicable sales tax, GST/QST or VAT is calculated and added at checkout from your billing address. Businesses can enter a VAT/GST number at checkout.
Can we get a signed agreement, tax form or security questionnaire?
Yes. For a signed PDF agreement, vendor profile, W-8BEN or equivalent, or a security questionnaire, write to [email protected] with your Stripe invoice number. Enterprise agreements are always signed contracts.
What is not included: Unless explicitly granted, no tier includes redistribution, OEM, SaaS hosting, or sublicensing rights. Contact sales for custom terms.
Procurement: All prices are in USD; applicable taxes are added at checkout. Monthly and annual plans renew automatically until cancelled, with a reminder before each annual renewal. 14-day money-back guarantee on your first payment of any plan. Tokens are emailed within minutes.
By purchasing, you accept the Commercial Licence Agreement.