Leanstral 1.5 Released: SOTA on Grad Algebra Benchmark
AlbertQJiang · x · 2026-07-03
A research team has released Le Chaton LEAN (Leanstral 1.5), a language model designed specifically for Lean theorem proving and formalized mathematics, achieving state-of-the-art performance on a graduate-level algebra benchmark.
By deeply integrating LLM capabilities with the Lean formal language, the model pushes the boundaries of AI in high-level mathematical reasoning, marking new progress in formal reasoning.
Related event: Mistral Releases Open-Source Lean 4 Proving Agent Leanstral 1.5(5 posts)→
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