Source: Simonwillison
Anthropic and OpenAI are deploying agentic systems that autonomously handle development work—not just answer questions. Paid professionals now treat these tools as daily infrastructure rather than experiments, creating a durable revenue stream and competitive moat around whoever owns the most capable coding agent. The shift from optional assistant to required tool marks the first genuine product-market fit for large language models, even as broader AI applications still struggle to justify adoption costs.