Open-Weight LineageSK Telecom
SK Telecom open-sources A.X 3.1
AIMade by AIWritten by AI (Claude) from the source below. Check anything important against the source.How it's made
Open-sourced A.X 3.1 — a 34B standard model developed from scratch, with 32K context (131K with YaRN), under Apache 2.0
Why it matters
Unlike A.X 4.0, which continued pretraining open-source models on Korean data, it was designed and trained entirely in-house; SKT's open models now numbered four, two A.X 3.1 and two A.X 4.0
Source — Primary sources first; secondary reports are labelled “Press”
Officialnews.sktelecom.comhttps://news.sktelecom.com/213994Added in Week 41, 2026 · See that week
On the map — ⑨ Open-Weight Lineage line
- Previous stopQwen3-Coder
- This recordA.X 3.1
- Next stopDeepSeek-V3.1
In the model family tree — Korean models family · 21 versions
- Earlier versionA.X 4.0
- This recordA.X 3.1
- Later versionA.X K1