Open-Weight LineageOSI

Open Source AI Definition 1.0

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Open Source AI Definition 1.0 — 3 components: Data Information, Code and Parameters

Why it matters

Established the grounds for ruling that most of Llama, Gemma and Qwen are not open source

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

Officialopensource.orghttps://opensource.org/ai/open-source-ai-definition

Added in Week 35, 2026 · See that week

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Same week

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Nearby on the same axis

GENIAC cycle 1 yields PLaMo-100B-Pretrained (100B parameters, from scratch)OfficialMeta releases Llama 3.2 with vision and on-device modelsOfficialDeepSeek releases DeepSeek-V3OfficialAlibaba releases Qwen2.5Official