Open-Weight LineageSK Telecom

SK Telecom releases A.X 4.0 as open source

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A.X 4.0 released as open source — two versions, with 72 billion and 7 billion parameters

Why it matters

The first large open-weight release by a telecom operator

Source — Primary sources first; secondary reports are labelled “Press”

Officialnews.sktelecom.comhttps://news.sktelecom.com/213534

Added in Week 35, 2026 · See that week

On the map — ⑨ Open-Weight Lineage line

  1. Previous stopKanana Nano 2.1B
  2. This recordA.X 4.0
  3. Next stopQwen3-Coder
See it on the map

In the model family tree — Korean models family · 21 versions

  1. Earlier versionKanana 1.5
  2. This recordA.X 4.0
  3. Later versionA.X 3.1
See the whole Korean models family

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