TLA+ vs Z3

TLA+

5.3 #28 in Formal Verification Tools

About TLA+

Z3

6.7 #3 in Formal Verification Tools

About Z3
TLA+Z3
Free planYesYes
Free trialNoNo
Paid fromFreeFree
Platformsextension, Linux, macOS, WindowsAndroid, api, Linux, macOS, self-hosted, Web, Windows
Verification methodhybrid
Supported formalismsinvariantstheorem-proving
CounterexamplesYesYes
Input languagesTLA+ and PlusCalSMT-LIB2, C, C++, .NET, Java, Python, Rust, OCaml, Julia, JavaScript, TypeScript, Smalltalk, Go
Deploymentbothself-hosted
Free planYes
Proof artifactsYes

Listed together in Best Formal Verification Tools