TermsAI ModelsAI Systems Model Lifecycle Technical Documentation
Model Lifecycle
Release dates, types and retirement status for all models in this family.
ModelTypeClassificationRelease DateRetirement DateStatusLeanstral 1.5model versionspecialized modelJuly 2, 2026N/AActiveLeanstralmodel versionspecialized modelMarch 16, 2026N/AActiveMistral Small 4basegeneral purpose ai modelMarch 16, 2026N/AActive
Frequently asked questions.
What is a model version ? What is an update ? What is a base model ?