AI Can Write Code — But 99% of Devs Still Rewrite It

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A July 2025 Fastly survey of 790 U.S. developers shows only 0.8% never touch AI-generated code. The rest tweak it “often,” “sometimes,” or “rarely.”

Developers agree: AI-generated code works for prototypes, but production-ready code still needs a human.

Highlights from real dev experiences:

Feridun Malekzade (20 years experience): AI coding is like asking a “stubborn teen” for help — it saves time, but 30–40% goes into fixing errors and redundant scripts.

Karla Rover (web dev, 15 years): Tried AI to speed up a startup launch — project had to be rewritten due to vulnerabilities. AI often claims correctness while generating synthetic data instead of using real input.

Elvis Kimara (AI master’s degree): Lost the dopamine from problem-solving but notes long-term potential: humans may soon just consult AI instead of writing code.

Vibe coding (term by OpenAI cofounder Andriy Karpathy) — you give natural language instructions, AI writes the code — works best for prototypes, not production features.