Mistral AI released Leanstral, the first open-source code agent for Lean 4, designed to generate formally verified code with 6 billion active parameters and optimized for proof engineering tasks. The model demonstrated competitive performance against larger open-source and closed-source alternatives like Claude Opus, achieving superior efficiency at significantly lower computational cost.
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Mistral AI released Leanstral, the first open-source code agent for Lean 4, designed to generate formally verified code with 6 billion active parameters and optimized for proof engineering tasks. The model demonstrated competitive performance against larger open-source and closed-source alternatives like Claude Opus, achieving superior efficiency at significantly lower computational cost.