All parts of Airbender are released as free and open-source (MIT/Apache). The project is in early beta, with internal audits completed.
Quote
Sources
Introducing ZKsync Airbender: The world’s fastest open-source RISC-V zkVM
Referenced by
Airbender is fully open-source under MIT and Apache licenses and is currently in beta. A demo app is available for developers to test transaction-to-proof workflows on the ZKsync OS testnet.
Crypto news
Claim