51% of GitHub Code Now AI-Assisted — AI Coding Tools Market Hits $12.8 Billion in 2026
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By early 2026, 51% of all code committed to GitHub was either generated or substantially assisted by AI, up from roughly 30% in 2024. The AI coding tools market has exploded to an estimated $12.8 billion in 2026, up from $5.1 billion in 2024 — a 150% increase in two years. Developers are increasingly moving beyond single-tool workflows toward multi-agent orchestration, with tools like Windsurf's Cascade and Codex with GPT 5.5 competing for the 'just ship the work' default.