Mellum 2

Open mixture-of-experts model from JetBrains: 12B total with 2.5B active parameters, trained from scratch on roughly 10.6T tokens for software engineering. The vendor positions it as a fast component inside larger AI systems rather than a frontier replacement. Apache 2.0.

выпуск 01–02.06.2026; производителя JetBrains в справочнике нет

Understands

text

This model cannot see images or video — you can only give it text. That matters if you planned to show it screenshots or documents with pictures.

Produces

text, code

Contents verified with the vendor: 2026-08-18

Included in subscriptions

No catalogue entry marks this model as part of a plan yet. It will appear here once the plan contents are confirmed with the vendor.