JetBrains surveyed over 10,000 professional developers across 8 languages in January 2026 and found that 85-90% now use AI tools regularly — but only 29% trust the output to be accurate. That trust gap, more than the adoption numbers, defines the state of AI-assisted development in 2026.
JetBrains AI Pulse Survey 2026: What It Is and Why It Matters The JetBrains AI Pulse Survey is a recurring research program that tracks how professional developers actually use AI tools at work — not what they intend to use, not what they experiment with at home, but what ends up in their daily workflows. The January 2026 wave covered 10,000+ professional developers across 8 languages (English, German, French, Spanish, Portuguese, Russian, Chinese, and Japanese), making it one of the largest and most globally representative developer AI surveys conducted to date. Unlike analyst surveys that ask “are you excited about AI?”, JetBrains asks about specific tools, specific tasks, and specific outcomes — yielding data that teams can actually act on when building AI strategy. The survey runs in waves (previous waves covered April-June 2025 and September 2025), so researchers can track trends over time rather than reporting a single snapshot. This longitudinal design is what makes it possible to spot things like Claude Code’s 6x adoption surge or GitHub Copilot’s growth stall — patterns invisible in single-wave surveys.
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