Simon Willison: 'Not So Locked In Any More' — LLM Vendor Lock-In Is Dissolving

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Simon Willison published a May 14 blog post arguing that LLM vendor lock-in is materially reducing, tagged with AI-assisted programming, coding agents, and generative AI. The post builds on his broader May output including live-blogging Code with Claude 2026, publishing on 'Vibe Coding and Agentic Engineering Getting Closer Than I'd Like,' and launching the Datasette blog. Willison remains the most prolific public chronicler of the AI coding transition.