The Filecoin network has several different networks for testing, staging, and production purposes. This page contains information on available networks.
Test networks, or testnets, are version of the Filecoin network that attempt to simulate various aspects of the Filecoin mainnet. Since they are for testing they should not be used for production applications or services.
Calibration testnet is the most realistic simulation of the mainnet, where prospective storage providers can experience more realistic sealing performance and hardware requirements due to the use of final proofs constructions and parameters, and prospective storage clients can store and retrieve real data on the network. Clients can participate in deal-making workflows and storage/retrieval functionality. It also has the same sector size as the mainnet.