Stack Overflow's latest developer survey, based on 30,903 responses from 169 countries, paints a picture of an industry that has embraced AI tools without fully trusting them. Among the 10,926 daily AI users who answered the time-use question, about 80 percent said they spend at least an hour a day with AI, and nearly a third reported four hours or more. Coding assistants or agents are used by 66 percent of respondents, general-purpose chat tools by 63 percent, and automated agent workflows by 26 percent.
That reliance is tempered by skepticism. Only about 7 percent of developers said they trust AI output for important work decisions, and 48 percent trust it only when they can easily verify the result. Source attribution matters: 79 percent consider it important or very important when deciding whether to trust an AI-generated technical answer. Stack Overflow CEO Prashanth Chandrasekar framed this skepticism as a safeguard, saying trust is earned through transparency, source attribution, and rich technical context.
The survey also lands amid commercial friction over AI training data. Stack Overflow launched OverflowAPI in early 2024 to license its Q&A content with attribution requirements, but its later partnership with OpenAI—which allowed training on 15 years of user contributions—sparked a user revolt, with some threatening to delete posts. Separately, 52 percent of respondents said they learned a new coding skill this year, with AI code-generation tools ranking among the most common learning resources, though still behind technical documentation.