Named backends.
Honest status.
Every quantum backend behind SynapseX: free simulators that run today, and partner QPUs in development. Each row says what it is, what it costs, and whether you can press run.
Free simulators.
Running today.
Every tool below runs today and costs 0 credits within the Free limits: up to 100 simulation runs a month, one at a time, up to 60 seconds each, on CPU only. Most experiments never need to leave this table.
Partner hardware.
In development.
Partner QPU access through gateway providers is in development, by modality. We don't tag hardware live until you can press run.
To hear when partner QPU access opens, write to sales@softquantus.com.
Next in line.
Not live yet.
GPU Statevector
NextLarger state-vector simulation on GPU workers
HPC Batch
NextQueued batch runs on HPC capacity
Estimate. Reserve.
Settle.
1 credit is $0.01 and simulators cost 0 credits. Paid compute is in development; the design is that nothing bills blind: every job is priced before it runs, credits are reserved at submit, and the ledger settles to what the run actually used — with a sealed record you can audit.
Estimate before any spend
POST /api/v1/runtime/estimate prices the job first. No credit moves until you have a number and say yes.
Reserve at submit
Submitting a paid job reserves the estimated credits up front — a run can never spend money you haven't set aside.
Settle to actual usage
When the job finishes, the reservation settles to what was actually used. Unused credits return to your balance.
Sealed evidence, every job
Each job ships a sealed evidence bundle — a Merkle SHA-256 record of what ran, where, and what it returned.
Four endpoints.
The whole surface.
The same catalog this page renders is one GET away. List backends, estimate the cost, submit the job, collect the artifacts — every response carries the job's sealed evidence bundle so the result can be checked by someone who wasn't in the room.
~ % BASE=https://api.softquantus.com ~ % AUTH="Authorization: Bearer $SYNAPSEX_API_KEY" # list the backends and their status ~ % curl -H "$AUTH" $BASE/api/v1/runtime/backends # price a job before a single credit moves ~ % curl -X POST -H "$AUTH" -H "Content-Type: application/json" \ -d @job.json $BASE/api/v1/runtime/estimate # submit — credits reserve now, settle to actual usage ~ % curl -X POST -H "$AUTH" -H "Content-Type: application/json" \ -d @job.json $BASE/api/v1/runtime/jobs # results + the sealed evidence bundle (Merkle SHA-256) ~ % curl -H "$AUTH" $BASE/api/v1/runtime/jobs/$JOB_ID/artifacts ~ %
Run your first
probe free.
The exact state-vector simulator costs 0 credits and is live now. Partner QPU access is in development, and nothing paid runs without your approval.
simulators cost 0 credits · sales@softquantus.com