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Leanstral-1.5

Mistral AI🇫🇷 FRFrontier· Jul 1, 2026

Otheropen weights

Leanstral 1.5 is an open-source code agent model designed for Lean 4, a proof assistant capable of expressing complex mathematical objects such as perfectoid spaces and software specifications like properties of Rust fragments.

From the model card

License
apache-2.0

1 variant

119B A6B119B-A6BHF

Sources

HuggingFace

Provenance

Detected
Sep 27, 2026
First source
huggingface
Description
From the model card
Editorially reviewed
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