Coding Agent Shootout: Mistral Vibe for Code vs Claude Code vs Cursor vs Codex on a Scaffold-to-PR Task

A head-to-head benchmark pitted four coding agents — Mistral Vibe for Code, Claude Code, Cursor, and OpenAI Codex — against each other on a single real-world scaffold-to-pull-request task, providing rare apples-to-apples agent comparison data. The evaluation focuses on end-to-end agentic capability rather than isolated code completion, making it more representative of how developers actually use these tools in production workflows. Results give developers concrete signal on which agent performs best for full-cycle coding tasks, from project scaffolding through to a shippable PR. This kind of task-grounded benchmark is far more useful than synthetic coding evals, and the inclusion of Mistral's newer entry alongside established players is timely. Developers choosing or switching their AI coding toolchain should weight these findings heavily.