Aider AI LLC

Aider AI LLC is a software company founded in 2023 by Paul Gauthier that develops an open-source AI pair programming tool called Aider. The tool runs in the terminal and allows developers to interact with large language models to write, edit, and refactor code directly within local Git repositories, supporting models from providers including OpenAI, Anthropic, and others via API.

Aider's primary product is the command-line tool of the same name, which integrates with a developer's existing workflow by reading and editing files in a local codebase and automatically committing changes to Git with descriptive messages. The tool supports multiple programming languages and is designed for use with repositories of varying sizes. It has gained traction among individual developers and has been noted in open-source communities for its benchmark performance on coding tasks.

Aider is distributed as an open-source project under a permissive license, with its source code hosted on GitHub. The project has accumulated a significant number of GitHub stars, reflecting broad adoption among developers. The company appears to operate with a very small team, consistent with an early-stage, founder-led open-source project. No external funding rounds have been publicly disclosed.