Codex CLI
AI Coding ToolsAI Code EditorsVibe Coding Tools
About Codex CLI
Codex CLI is OpenAI’s high-performance, Rust-based terminal agent for local development. Now supporting the powerful GPT-6 Astra model and experimental worktrees for isolated checkouts, it orchestrates complex coding tasks directly in your shell. As part of the broader ChatGPT Work superapp ecosystem, it seamlessly bridges local files and cloud apps. While it lacks live internet access, its generous usage limits make it a highly reliable daily driver, often used as an adversarial 'Senior Technical Critic' alongside tools like Claude Code.
Pricing
- $0/mo Free tier with limited high-reasoning messages
- $8/mo Go plan for casual developers
- $20/mo Plus plan with standard rate limits and GPT-6 Astra
- $100/mo or $200/mo Pro plan for 5x to 20x higher rate limits (Note: $200 tier new signups temporarily paused)
- Official Pricing Page
What people are saying
Developers increasingly rely on Codex CLI as a "Senior Technical Critic" and daily driver due to its generous usage limits and adversarial review capabilities compared to stricter alternatives.
- "Claude Code is objectively higher quality but currently unusable as a daily driver. One complex prompt burns 70% of your 5-hour limit. Codex CLI is slightly lower quality but actually usable. I’ve never hit my Plus plan limit despite coding all day." — Jacob Vendramin (September 2026)
- "I've built a 'Courtroom' deliberation system using Codex CLI. Claude Code drafts the feature, then Codex gets called as a 'Senior Technical Critic' with 6 review priorities... It catches things that even GPT-6 Astra misses because of its adversarial tuning." — u/dejavucoder (August 2026)
- "The 2026 power stack is Codex for keystrokes and Claude for commits. I throw implementation work at Codex, it disappears into its own VM, and comes back with a PR. It uses 4x fewer tokens than the competition for the same DevOps tasks." — Harjot Rana (September 2026)