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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

LicenseCommercial UseModify?Examples
Apache 2.0✅ Unrestricted✅ YesOpenAI gpt-oss-120b/20b, Gemma 4, Mistral Large 3, Qwen3
MIT✅ Unrestricted✅ YesDeepSeek-V3 / V3.2, DeepSeek-R1, DeepSeek-V4
Llama Community⚠️ Restricted >700M MAU✅ YesLlama 4 Maverick & Scout, Llama 3.3 70B, Llama 3.1 405B
Research Only❌ No✅ YesSome 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) and gpt-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 XP

Compare 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.
lab-sandbox — simulated environment
INFINITY LAB SANDBOX v2.6 — simulated shell
Type the command for the current objective. Helpers: "hint", "solution", "clear".
$
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