Claude Code
Anthropic
Terminal-native coding agent from Anthropic that reads, edits, and runs code directly inside your repository.
Agent mode inside the Cursor editor, planning and applying multi-file changes without leaving the IDE.
Cursor is a fork of VS Code built around model-assisted editing. Its agent mode goes beyond completion: you describe an outcome, the agent searches the codebase, proposes a diff across multiple files, and runs terminal commands under review. Codebase indexing gives it retrieval over your project rather than only the open buffer.
Cursor’s bet is that the review surface matters as much as the model. Everything the agent does arrives as a proposed diff you accept, reject, or amend, which keeps the editor as the source of truth rather than a chat transcript.
Retrieval is the other half. The editor maintains an index of the project so a request like “add rate limiting to the public endpoints” can locate the relevant handlers without you listing them. Rules files let you pin conventions — directory layout, testing style, forbidden dependencies — so the agent stops relearning them each session.
Where it fits: feature work and refactors inside a project you already know, done at editor speed. Teams that want fully unattended runs in CI will find a terminal or cloud agent a better shape. See our Cursor vs Windsurf comparison for how it lines up against the closest alternative.
Anthropic
Terminal-native coding agent from Anthropic that reads, edits, and runs code directly inside your repository.
Open source
Open-source terminal pair programmer that maps your repository and commits every change to git.
Cognition
Cloud software engineering agent from Cognition that works asynchronously in its own sandboxed environment.
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The AI signal without the hype — new models, tools worth your time and what actually shipped. One email, no vendor pitches.