Lightweight coding agent that runs in your terminal
⚡ Executive Summary & Quick Facts
Authoritative Sourcecodex is codex is an open-source project written in Rust: Lightweight coding agent that runs in your terminal.. It provides a free, self-hosted open-source alternative to OpenAI API & ChatGPT.
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), openai/codex has accumulated 134,879 GitHub stars and 21,363 forks. It is written in Rust, licensed under Apache-2.0, and ranks #56 globally. It is actively maintained with the latest commit recorded on Nov 11, 2026.”
| Repository | openai/codex ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | Rust |
| Software License | Apache-2.0 |
| Community Traction | ★ 134.9K stars · ⑂ 21.4K forks · #56 globally |
| Maintenance | ● Active (Last commit: Nov 11, 2026) · 27,165 open issues |
| Replaces SaaS | Open Source OpenAI API & ChatGPT Alternative (Pay-per-token pricing with zero private data guarantees) → |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 90/100 · Grade AYes, codex is actively maintained. Continuous telemetry recorded the last code commit on Nov 11, 2026 (1 days ago). Supported by 134,879 stars and 21,363 community forks, this repository holds a calculated health index of 90/100, reflecting very active (commits within last 14 days) and high open issue volume (27,165 open).
Star History
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+6.7K
STARS · LAST 30 DAYS
224
PER DAY
#4
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +1.7K | +6.7K | +20.2K |
| Per day | 242 | 224 | 224 |
| Forks gained | +266 | +1.3K | +1.1K |
codex gained 6.7K stars in the last 30 days, about 224 a day, and now has 134.9K. It is about 2 years old and has averaged roughly 67.4K stars a year. It ranks #4 among Rust repositories and #56 across all languages on GitHubRepo.
Trending Record
45
DAYS ON TRENDING
#35
BEST RANK
Sep 23, 2026
FIRST APPEARANCE
Active
STATUS TODAY
codex has maintained a continuous presence across global trending indexes, peaking at #35. Below is the 30-day activity profile:
💡 Overview
codex is an open-source project written in Rust: Lightweight coding agent that runs in your terminal.
Engineered for speed, consistency, and developer ease, it solves common hurdles in Rust. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Rust for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ cargo install codex⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
codex coordinates its core functionality through a modular Rust pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed codex into Rust backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open Apache-2.0 license.
🚀 Getting Started
Install codex using your package manager: `cargo install codex`
Initialize your project workspace or configuration file for codex.
Import codex into your codebase or invoke it directly from your terminal.
Execute your test suite or run `codex --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
openai/codex is currently ranked #56 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #51 | ytdl-org/youtube-dl | Python | ★ 141.4K | Compare ↗ |
| #52 | garrytan/gstack | TypeScript | ★ 141.1K | Compare ↗ |
| #53 | golang/go | Go | ★ 139.4K | Compare ↗ |
| #54 | microsoft/PowerToys | C | ★ 139.2K | Compare ↗ |
| #55 | nextlevelbuilder/ui-ux-pro-max-skill | Python | ★ 139.2K | Compare ↗ |
| #56 | openai/codex This Project | Rust | ★ 134.9K | |
| #57 | excalidraw/excalidraw | TypeScript | ★ 134.2K | Compare ↗ |
| #58 | ggml-org/llama.cpp | C++ | ★ 134.2K | Compare ↗ |
| #59 | Chalarangelo/30-seconds-of-code | JavaScript | ★ 129.5K | Compare ↗ |
| #60 | rustdesk/rustdesk | Rust | ★ 129K | Compare ↗ |
| #61 | kubernetes/kubernetes | Go | ★ 128.6K | Compare ↗ |
Frequently Asked Questions
What does codex do? +
Lightweight coding agent that runs in your terminal
Is codex actively maintained in 2026? +
Yes, codex is actively maintained. The latest code push was recorded on Nov 11, 2026 (1 days ago). It holds a calculated Maintenance Health Score of 90/100 (A rating) with 134,879 stars and 27,165 open issues.
What language is codex written in? +
The primary language is Rust. Topics include: software.
How many stars does codex have? +
codex has 134,879 stars and 21,363 forks on GitHub.
How does codex rank among GitHub repositories? +
With 134,879 stars, openai/codex is ranked #56 globally across all repositories tracked on GitHubRepo and #4 among Rust projects.
What license is codex distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
