12 AI Coding Agents Compared in 2026: Claude Code vs Antigravity vs Codex vs Cursor vs OpenCode vs Hermes
Security Boulevard, Sunday, June 7th, 2026
A comparison of 12 AI coding agents across model, price, parallelism, and benchmark scores to help pick one quickly.
This article compares 12 AI coding agents in 2026, including Claude Code, Antigravity, Codex, Cursor, OpenCode, and Hermes. It frames the choice around four levers: the underlying model, the price for heavy use, whether the agent can run sub-tasks in parallel, and how it scores on public coding leaderboards.
It references LLM-Stats data showing Claude Opus 4.8, the model behind Claude Code, scoring 88.6% on SWE-bench Verified and 74.6% on Terminal-Bench 2.1. By running all twelve agents against the four levers, the piece aims to let readers pick a tool in an afternoon.