Originally published on AI Tech Connect.
What changed in 2026: open-source coding agents grew up For most of 2024 and 2025, the open-source response to Claude Code was a long tail of partial tools. Aider had the early lead with its terminal-plus-git workflow; a handful of VS Code extensions chased the inline experience; nobody had a credible answer to Claude Code's agent-server, multi-session, plan-then-execute loop. That picture changed sharply in the first quarter of 2026. The headline signal: OpenCode crossed 158,404 GitHub stars — more than any other open-source AI coding tool. OpenCode is not alone. Cline matured its VS Code extension and in May 2026 open-sourced its agent runtime so teams could embed it anywhere. Continue kept its quiet bet on cross-IDE coverage — both VS Code and JetBrains. By May 2026 a small team in…
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