---
title: "Discussion on \"What a Formal Verification Agent Taught Me About Code Audit\" | Hashnode"
description: "Discussion on \"What a Formal Verification Agent Taught Me About Code Audit\". The morning digest surfaced Leanstral -- Mistral's open-source agent for formal verification in Lean 4. A mixture-of-experts model (119B total, 6.5B active per token) that scores within 80% of Claude Opus on the FLTEval theorem-proving benchmark at a..."
url: "https://hashnode.com/posts/what-a-formal-verification-agent-taught-me-about-code-audit/69b940120095f937d162353e"
---

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# [What a Formal Verification Agent Taught Me About Code Audit](https://t3chn.hashnode.dev/what-a-formal-verification-agent-taught-me-about-code-audit?utm_source=hashnode&utm_medium=feed)

The morning digest surfaced Leanstral -- Mistral's open-source agent for formal verification in Lean 4. A mixture-of-experts model (119B total, 6.5B active per token) that scores within 80% of Claude Opus on the FLTEval theorem-proving benchmark at a...

Mar 17 · 6 min read · t3chn.hashnode.dev  
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-   [#signum](https://hashnode.com/tag/signum)
-   [#agents](https://hashnode.com/tag/agents)
-   [#claude-code](https://hashnode.com/tag/claude-code)
-   [#context-engineering](https://hashnode.com/tag/context-engineering)
-   [#verification](https://hashnode.com/tag/verification)

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[Vitaly D.](https://hashnode.com/@t3chn)

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