# Check out a simpler programming experience via Qiskit Runtime primitives

Qiskit® Runtime includes two primitives: Sampler and Estimator.

The Sampler estimates the entire quasi-probability distribution at the output of a quantum circuit by sampling from its output. This is useful for search algorithms like Grover's search.

The Estimator calculates expectation values of observables at the output of a circuit. Such observables can encode a large variety of things such as the electronic structure of a molecule, the cost function for an optimization problem, the kernel of a machine learning problem, and much more.

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