Aider vs Codex CLI
Side-by-side comparison built from DeepYard's structured catalog. Content updated Aug 21, 2026.
Direct Answer
Aider suits teams needing open-source access, claude focus, and 48,395 GitHub stars in current listing data. Codex CLI suits teams needing open-source access, gpt 4 focus, and 111,724 GitHub stars in current listing data. This summary reflects catalog metadata only for decision support, not independent testing.
What this comparison weighs
- Pricing and free-tier availability
- License model and deployment fit
- GitHub adoption and contributor depth
- Catalog tags, integrations, and supported workflows
| Metric | Aider | Codex CLI |
|---|---|---|
| GitHub Stars | 48.4K | 111.7K |
| Contributors | 172 | 471 |
| Last Commit | May 22, 2026 | Aug 22, 2026 |
| Open Issues | 1809 | 13418 |
| License | open-source | open-source |
| Pricing | open-source | open-source |
| Free Tier | Yes | Yes |
| Category | agents | agents |
| Trending | No | No |
Choose Aider if you need
- • Aider is the stronger pick when Claude matters because that capability is listed only on its profile.
- • Aider is the cleaner fit if you specifically need Pair Programming workflows from the catalog tags.
Choose Codex CLI if you need
- • Codex CLI is the stronger pick when Gpt 4 matters because that capability is listed only on its profile.
- • Codex CLI shows broader GitHub adoption with 111,724 stars versus 48,395 for Aider.
- • Codex CLI has a larger visible contributor base (471 vs 172).
Meaningful differences
- • GitHub adoption: Aider shows 48,395 stars versus 111,724 for Codex CLI.
- • Contributor count: Aider lists 172 contributors and Codex CLI lists 471.
Shared capabilities
- • Cli
- • Terminal
- • Open Source
Shared Tags
Only in Aider
Only in Codex CLI
Limitations and evidence
- • DeepYard compares structured public metadata; this is not an independent benchmark unless a test record is shown.
- • Signals such as stars, contributors, and last commit indicate public activity, not purchase fit or runtime quality.
- • Pricing and feature coverage reflect the stored listing snapshot and may lag vendor changes between refreshes.
About Aider
Aider is the original AI pair programming tool for the terminal. It lets you collaboratively edit code with LLMs by chatting in your terminal, with changes applied directly to your local git repo. Supports multi-file editing, git integration with automatic commits, voice coding, and works with Claude, GPT, Gemini, DeepSeek, and local models. Known for scoring highest on SWE Bench coding benchmarks.
View full listingAbout Codex CLI
Codex is OpenAI's official lightweight coding agent that runs in your terminal. It can write code, fix bugs, execute shell commands, and work across your entire codebase. Uses sandboxed execution for safety and supports multi-turn conversations with full project context.
View full listing