Mistral AI released Leanstral 1.5, a code agent model for the Lean 4 proof assistant. The 119B-parameter model solves 58...

Mistral AI released Leanstral 1.5, a code agent model for the Lean 4 proof assistant. The 119B-parameter model solves 587 of 672 PutnamBench problems, achieving 100% on miniF2F. Apache 2.0 licensed with free API. https://www.marktechpost.com/2026/07/03/mistral-ai-releases-leanstral-1-5-an-apache-2-0-lean-4-code-agent-model-solving-587-of-672-putnambench-problems/ #AIagent #AI #GenAI #AIResearch

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