aider vs zero
Terminal-based AI coding assistants compared
aider and zero both help developers inspect and change code from a terminal, with support for hosted and local models. aider emphasizes pair programming in a Git workflow, while zero adds scriptable execution, local session management, and configurable controls for tool actions.
aider: Pair Program with AI in Your Terminal
Aider is a terminal-based AI coding assistant that works with existing repositories or new projects. It helps developers make code changes with cloud or local language models while keeping edits and version control in their workflow.
zero: Run a Local Terminal Coding Agent
Zero is a Go-based terminal coding agent that can inspect and edit repositories, run commands, and work with many hosted or local models. It suits developers who want scriptable coding assistance with local sessions and explicit controls over side effects.
| aider | zero | |
|---|---|---|
| Language | Python | Go |
| License | Apache-2.0 | MIT |
| Stars | 49.4k | 1.7k |
| Forks | 5k | 194 |
| Last analyzed | Oct 3, 2026 | Oct 3, 2026 |
Key differences
- aider is written in Python and uses the Apache-2.0 license; zero is written in Go and uses the MIT license.
- aider integrates with Git and can commit changes with generated messages, while zero provides permission controls and sandbox policies for actions such as file writes and shell commands.
- zero offers a headless `zero exec` command with text and structured I/O options for scripts and CI; aider describes a conversational terminal workflow and a copy-and-paste option for model web chats.
- aider supports more than 100 programming languages and can run linters and tests after edits; zero lists repository maps, verification checks, worktrees, and usage reporting among its utilities.
- aider has 49.4k stars and 5k forks, while zero has 1.7k stars and 194 forks.
- Building zero from source requires Go 1.26.6 or later; aider's listed implementation language is Python.
Choose aider if you…
- prefer a terminal-based pair-programming workflow centered on Git and reviewing code changes.
- want repository mapping, support for more than 100 programming languages, and help running linters and tests.
- want options including editor-based workflows, voice input, or model web-chat copy-and-paste.
Choose zero if you…
- need a headless command for running coding tasks in scripts or CI with structured I/O.
- want explicit permissions and sandbox policies for file writes, shell commands, and network access.
- want local sessions that can be searched, resumed, forked, or rewound, or extensibility through MCP servers, plugins, hooks, and subagents.
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.