codex

Lightweight coding agent that runs in your terminal

CLI is a coding agent from OpenAI that runs locally on your computer. If you want Codex in your code editor (VS Code, Cursor, Windsurf), install in your IDE. It has reached 85,508 GitHub stars, written primarily in Rust. Two independent sources are currently tracking it.

Why now: Recent coverage — "OpenAI debuts Codex CLI, an open source coding tool for terminals" — alongside cross-source attention on TrendingRepo's pipeline, Hacker News, and Dev.to is driving current visibility.

• 85,508 GitHub stars, 12,472 forks — verifiable at github.com/openai/codex.
• Tracked across 2 sources: TrendingRepo's pipeline, Hacker News, and Dev.to (consensus score 6.9, rank #30).
• Primary language Rust.
• Licensed Apache-2.0.
• Third-party coverage: "OpenAI debuts Codex CLI, an open source coding tool for terminals".

Considerations: Signal is real but still consolidating; a second independent source would confirm the trajectory.

ESTABLISHED · GAINING · Build on it: Proven at scale (Rust) — safe to evaluate for production use or coverage; the open question is fit, not validity.

Sources: openai/codex on GitHub · OpenAI debuts Codex CLI, an open source coding tool for terminals · OpenAI Codex CLI: Coding Agent for terminal - Medium · Codex CLI vs OpenHands CLI - Terminal Trove