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Lean

Input—per 1M tokens
Output—per 1M tokens
Context—tokens
WeightsClosed

About

Lean is ranked #24 of 33 in formal verification tools on Inferse. It runs on Web, Windows, macOS, Linux.

Compared on formal verification tools

Verification method
deductivelean-lang.org
Supported formalisms
theorem-provinglean-lang.org
Proof artifacts
Yeslean-lang.org
Input languages
Lean 4lean-lang.org
Deployment
bothlean-lang.org

Company

Founded
2013lean-lang.org · 28 Sept 2026

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Where it ranks on Inferse

Sources