Licensing: Open Weights vs Open Source — The Open Source AI Space
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Licensing: Open Weights vs Open Source
🌐 The Open Source AI Space⏱ 7 min⭐ 50 BASE XP⌨ HANDS-ON LAB
Understanding AI Model Licenses
Not all "open" models are truly open source. The distinction between open weights and open source is critical for commercial use.
License Comparison
| License | Commercial Use | Modify? | Examples |
|---|---|---|---|
| Apache 2.0 | ✅ Unrestricted | ✅ Yes | OpenAI gpt-oss-120b/20b, Gemma 4, Mistral Large 3, Qwen3 |
| MIT | ✅ Unrestricted | ✅ Yes | DeepSeek-V3 / V3.2, DeepSeek-R1, DeepSeek-V4 |
| Llama Community | ⚠️ Restricted >700M MAU | ✅ Yes | Llama 4 Maverick & Scout, Llama 3.3 70B, Llama 3.1 405B |
| Research Only | ❌ No | ✅ Yes | Some academic models |
⚠️ Warning: Meta's Llama 4 and Llama 3.1 / 3.3 Community Licenses require a separate commercial agreement if your product exceeds 700 million monthly active users, and include specific EU regulatory and Acceptable Use Policy clauses.
The Ecosystem Map
- Meta: Llama 4 MoE herd (Scout 17B-16E / 109B total with 10M context; Maverick 17B-128E / 400B total with 1M context; internal teacher Behemoth ~2T MoE) alongside dense Llama 3.3 (70B) and Llama 3.1 (405B/70B/8B)
- Mistral AI: European sovereignty across Mistral Large 4 (~1T MoE / 52B active), Apache 2.0 Mistral Large 3 (675B / 41B active), Magistral (reasoning), Devstral (SWE agents), Codestral, and Ministral 3 (3B/8B/14B)
- DeepSeek: MIT-licensed reasoning and MoE powerhouse — DeepSeek-V4 Pro / Flash (1.6T / 49B active, 1M context), DeepSeek-V3 / V3.1 / V3.2 (671B / 37B active), and DeepSeek-R1 (GRPO reasoning)
- Alibaba (Qwen): Qwen3 (235B-A22B & 30B-A3B MoE + dense 0.6B–32B, Apache 2.0), Qwen3-Coder (480B-A35B & Coder-Next 80B-A3B, Apache 2.0), and Qwen 3.5 / 3.8 (27B Apache 2.0 & 2.4T MoE)
- Google (Gemma): Gemma 4 (E2B, E4B, 26B-A4B MoE, 31B Dense, up to 256K context) re-licensed to Apache 2.0, succeeding Gemma 3 (1B–27B, custom Gemma Terms of Use)
- OpenAI (gpt-oss): Apache 2.0 open-weight reasoning MoE models —
gpt-oss-120b(~117B total / 5.1B active, single 80GB GPU via MXFP4) andgpt-oss-20b(~21B total / 3.6B active, 16GB RAM/VRAM) with 131K context and native tool calling
⌨ HANDS-ON LABVerify Open Source AI Definition (OSAID) Compliance
⭐ +150 XPCompare model weights licenses (e.g. Apache 2.0 vs Meta Community License) using Python huggingface_hub API.
1Extract license and usage restriction flags from the model card via python.
OBJECTIVE 1 / 1 — type "hint" if stuck
KNOWLEDGE CHECK
QUERY 1 // 2
Which license allows fully unrestricted commercial use with no user-count limits?
Llama Community License
Apache 2.0
Creative Commons
GPL v3