Junior to Agent Architect: Mastering Anthropic’s Claude SDK From Scratch
Towards AI
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Generative AI
The AI race has a new leader, and most developers haven’t caught up yet Let me tell you something that surprised me when I first saw the data. In 2023, every developer I spoke to was building on OpenAI. GPT-4 was the default. The ecosystem was there, the docs were there, the Stack Overflow answers were there. Anthropic was the scrappy challenger, admired by researchers and mostly ignored by builders. Then something shifted. By the end of 2025, Anthropic had crossed a revenue milestone that nobody predicted that early.