Aider vs Codex comparison
Compare Aider and Codex in Code item by item — price, plans, specs, Korean support, and commercial-use availability. In the table below, use Show differences only to filter to just the differing rows.
Open-source AI pair programmer in your terminal
An open-source AI pair programming tool that runs in the terminal, connecting to the LLM of your choice to read your codebase and edit files directly. It automatically commits every change to git, preserving a full work history.
Edge vs. similar tools: Its strength is an open-source workflow that connects any LLM via BYOK and automatically commits every edit to git.
Coding agent connected to ChatGPT
OpenAI's coding agent for writing, reviewing, debugging, and automating development work across app, CLI, IDE, and cloud workflows.
Edge vs. similar tools: It connects app, CLI, IDE extension, cloud tasks, and code review in one Codex workflow.
Item-by-item comparison
Pricing
- Free plan
- Yes
- Cheapest paid
- Free
- Plans
- 1
Specs
- Autocomplete
- Not supported
- Agent mode
- Supported
- IDE integration
- -
Cross-cutting
- Korean
- Supported
- API
- No
- Commercial use
- Allowed
Pricing
- Free plan
- Yes
- Cheapest paid
- from $8/mo
- Plans
- 5
Specs
- Autocomplete
- Not supported
- Agent mode
- Supported
- IDE integration
- Codex app, CLI, VS Code-compatible IDE extension
Cross-cutting
- Korean
- Supported
- API
- Yes
- Commercial use
- Allowed
Aider vs Codex: which should you choose?
- Aider and Codex can be started for free, so you can see the results first without signing up.
- Codex has the higher popularity score (Aider 44 vs Codex 86), so it has stronger public awareness signals in this category.
- To integrate directly into your service, choose Codex, which provides an API.