Ai coding agents

The CLI coding agents worth using in October 2026: Claude Code on Opus 5.5, OpenAI Codex on GPT-6.1 Sol, OpenCode at 212k+ stars, Cursor CLI now part of SpaceX, Antigravity CLI after the Gemini CLI shutdown, and where Aider, Pi, DeepSeek Harness and the rest of the open-source field fit.

The AI coding tools worth installing in late 2026: Cursor after the SpaceX deal, Google Antigravity, GitHub Copilot's credit billing, Cline, Kilo Code, Zed, Kiro, and terminal agents like Claude Code, OpenAI Codex, DeepSeek Harness, OpenCode, Pi, Amp, Grok Build, and Droid.