What is Leanstral 1 5?
Tavory's live catalog lists Leanstral 1 5 through Mistral. The route is described as leanstral 1.5 is an updated lean 4 formal proof engineering model from mistral ai, optimized for automated theorem proving and autoformalization. it has 119b total parameters with 6.5b active and supports a 256k token context window. it supports native function calling and structured output.. This page summarizes the current catalog facts so you can compare context, capabilities and provider price signals before opening a workspace request. Availability, plan access and final cost are checked again when you send.