Aider vs Crush: pricing, features and which to choose

Aider is an open-source AI pair-programming tool from Aider AI LLC, created in 2023 and distributed under the Apache License 2.0. Its GitHub repository was created on May 9, 2023. The program runs in a terminal, reads a local Git repository, sends selected context to a connected language model, and applies edits to files. Aider does not sell a bundled hosted coding subscription. Its homepage reports 15 billion tokens per week and lists cloud and local model support. The repository lists 49,692 stars in the entered snapshot. For buyers, this means the product is software to operate and configure, not a packaged service with one account, model, or administration layer. Aider is centered on local repositories, command-line control, and external model services rather than a single hosted model.

A typical session starts inside a Git repository. Aider builds a repository map, then accepts a request in chat and proposes edits to selected files. It can add files, modify files, create Git commits with generated messages, display diffs, and use familiar Git operations to review or undo changes. Documentation also covers linting and testing, image and web-page context, voice-to-code, IDE integration, browser use, and scripting through the command line or Python. Users can connect hosted providers, GitHub Copilot, OpenRouter, Ollama, or other compatible endpoints. For a buyer, the practical appeal is a reviewable, scriptable workflow that fits existing Git habits. The repository and review process remain on the developer’s machine, while model requests follow the selected provider’s connection and terms.

Aider fits developers who understand Git, manage model credentials, and want cloud or local model choice. It is less suitable for teams seeking a hosted IDE, central seat administration, consolidated billing, or a fixed monthly model allowance. Privacy depends on the selected provider for code context sent with a request. Aider’s optional analytics collect model, token, feature, command, exception, and error data only after opt-in, and exclude code, chats, prompts, keys, and personal information. Compared with Cursor, Aider offers a terminal-first workflow and broader endpoint choice; GitHub Copilot offers subscription-based access inside its own product; Continue also supports local and hosted models inside developer editors. Pick Aider for Git control, scripting, and BYOK flexibility.

Crush is a Go terminal coding agent made by Charmbracelet, the company behind Bubble Tea and other terminal tools. The repository was created in May 2025 and has grown to more than 28,000 stars on GitHub. It runs on macOS, Linux, Windows through PowerShell or WSL, Android, FreeBSD, OpenBSD, and NetBSD. The application is free to install, but it does not include unlimited model inference. Charm lists Hyper as its official subscription provider, while users can connect hosted APIs or local models. That split matters for budgeting because Crush is the client, while the selected provider normally bills model usage. The project uses the FSL-1.1-MIT license, with each version converting to MIT on its second anniversary.

The normal workflow begins in a project directory, where Crush opens an interactive terminal interface and asks for a model or API key. Users can maintain multiple sessions and preserve context while switching models. Language Server Protocol integration supplies code intelligence, while Model Context Protocol support adds tools through HTTP, stdio, or SSE servers. The agent can inspect files, propose edits, and run commands, with configuration controlling permissions. Crush supports OpenAI-compatible and Anthropic-compatible custom providers, alongside Anthropic, OpenAI, Gemini, OpenRouter, Bedrock, Vertex AI, and Groq. Its security documentation says crushrc is trusted shell code and warns that shell substitutions in crush.json run during configuration loading. Configuration review therefore belongs in the normal deployment process.

Crush combines LSP context, MCP extensibility, sessions, local-model support, and broad operating-system coverage in one terminal client. Its cost and model quality depend on external providers, while its FSL license restricts some competing commercial redistribution before conversion. Configuration can execute shell code, so teams need permission discipline and repository review. Aider focuses on repository editing with an open-source license, Claude Code is Anthropic's first-party coding agent, and GitHub Copilot CLI is more closely tied to GitHub accounts and Copilot plans. Those products offer clearer single-vendor operating models. Pick Crush if endpoint flexibility, local inference, and terminal portability matter more than one bundled subscription or conventional open-source licensing.