Open Source After the Frontier Gate
· 19 min read#open-source#llm#grpo
The US walled off frontier AI. Five days later, an open-weight model beat GPT-5.5. The post-training pipeline is where open-source AI compounds its advantage.
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The US walled off frontier AI. Five days later, an open-weight model beat GPT-5.5. The post-training pipeline is where open-source AI compounds its advantage.
A first-principles breakdown of why open-source language models are reshaping AI — from cost and transparency to sovereignty, competition, and the now-closed performance gap.