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There are several simulator options available for Azure Quantum users, many of which are free.
The Azure Quantum QDK and hosted notebooks in the Azure Quantum service have a number of local simulators available. More info on these here: Quantum simulators and Q# programs - Azure Quantum | Microsoft Learn
In addition to local simulators, our 3<sup>rd</sup> party providers all offer various simulators and emulators (which mimic the noise model of their quantum machines). Pricing for these simulators is available at: https://zcusa.951200.xyz/en-us/azure/quantum/pricing. For Quantinuum in particular, simulator usage consumes eHQCs. A fixed number of eHQCs are included in a customer’s subscription depending on the type of plan they use with Quantinuum. See the pricing documentation linked above for more details.
The subject of this thread specifically mentions the quantinuum.sim.h1-s2c target. Note that sim.h1-s2c is the Syntax Checker, not an emulator. It is meant to validate code to ensure it will be submitted to a Quantinuum target without errors, it will not simulate results itself. As noted in the Quantinuum target lists (Quantinuum provider - Azure Quantum | Microsoft Learn), usage of the Syntax Checker is free. The simulator to use for H1-2 would be quantinuum.sim.h1-2e.
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