Cursor, Claude Code, and Codex Are Converging into an Unplanned Unified AI Coding Stack

Summary

The New Stack reports on the emergent convergence of three prominent AI coding tools — Cursor (an AI-native IDE), Anthropic's Claude Code (a CLI-based agentic coding agent), and OpenAI's Codex — into what developers are treating as a single, composable AI coding stack. Rather than any planned integration or partnership, the article describes how practitioners are layering these tools together in daily workflows: using Cursor for in-editor AI assistance, Claude Code for multi-file agentic task ex