Leanstral : fondation open source pour un vibe coding fiable

A new open-source AI agent named Leanstral is designed to formally prove code implementations using the Lean 4 proof assistant. This tool aims to overcome the bottleneck of manual human review by automatically verifying code against strict specifications in high-stakes fields like advanced math and critical software. Built for efficiency, the compact model significantly outperforms larger open-source competitors and provides a powerful, low-cost alternative to proprietary systems. Beyond just generating code, Leanstral can diagnose complex bugs, translate program definitions into Lean, and prove the correctness of software properties.