// Try it · Public demo
Run a quantum circuit on 8 vendors. Right now.
Click the button. The same Bell-pair circuit is sent to 8 vendor backends through a single API. The simulator is deterministic — same input, same output, every time. Perfect for screenshots, audit trails, and papers.
100 shots per vendor
What this is doing
The circuit is a Bell pair: a Hadamard on qubit 0, a CNOT from 0 to 1, then measure. The expected counts are 50% |00⟩ and 50% |11⟩, with small noise leakage into |01⟩ and |10⟩. The fidelity is the fraction of shots that landed on |00⟩ or |11⟩.
Why deterministic?
The simulator uses a seeded PRNG (mulberry32) keyed on the circuit, shots, and vendor list. That means a screenshot today will match a screenshot next year. Real hardware (Q1 2027 via BYOC) will be non-deterministic by definition.
What you can do with this
Use it to validate your own T5.4 audit methodology, to demo the platform to a partner, or to show your research group what multi-vendor orchestration looks like. It's free, public, and embeddable.
The full version
The full BSaaS (auth-gated) supports up to 10K shots per run, custom circuits, per-shot accounting, and a per-job error budget. See the BSaaS product page or the pricing for paid tiers.
Use it in your own code
The public demo endpoint is POST /api/bsaas/demo. No API key, no auth, no credits. Returns a JSON object with the per-vendor counts, fidelity, runtime, and cost.
curl -X POST https://eigenosquantum.com/api/bsaas/demo \
-H "Content-Type: application/json" \
-d '{
"circuit": "h 0; cnot 0 1; measure",
"shots": 100,
"vendors": ["ibm", "ionq", "google"]
}'