AI for Software Engineers

Understanding Open Model Licenses

Google unveiled Gemma 4, its latest multimodal open‑weight model, and notably switched its distribution to the Apache 2.0 License. The permissive terms remove usage caps, grant patent protection, and allow commercial integration without open‑sourcing derivatives. The move underscores a broader industry shift where model licenses are becoming as critical as raw performance. Developers now must evaluate both technical benchmarks and licensing constraints when selecting LLMs for production workloads.