Leanstral 1.5 小考满分 100% —— 并发现真实代码漏洞
mistral 发布了 leanstral 1.5，这是一个在 minif2f 上得 100 分的 lean 4 模型，能发现真实的 rust 漏洞，标志着形式验证在开源代码安全中已具备可行性。
mistral ai released leanstral 1.5, a free open-source model fine-tuned for the lean 4 language to formalize mathematical proofs and software verification. the model achieves 100% accuracy on the minif2f benchmark and solves 587 problems on putnambench, outperforming all open-source competitors and trailing only aleph prover. in practical tests, it scanned 57 open-source repositories and identified five previously unknown bugs, including a critical overflow in a rust library. this release signals that open-source models are now capable of handling complex formal verification tasks previously reserved for closed systems. available via hugging face and free api, leanstral 1.5 represents a shift toward verifiable, math-grade ai.