Free developer tool
Compare two coding agents on the same real repository task. The weighted result helps you choose based on correctness, verification, control, and review cost.
Interactive worksheet
Give both tools the same task. Score only the evidence you can review.
Found the relevant files and respected project conventions.
Solved the stated task without unrelated changes.
Ran useful checks and reported failures honestly.
Produced a small, understandable diff with a clear explanation.
Made permissions, commands, and risky actions visible.
Worked smoothly with your editor, terminal, repository, and team.
Inspect this repository and implement the smallest safe change for the task below. Before editing, identify the relevant files and constraints. Preserve public behavior outside the task. Run the existing focused tests and type checker. Report files changed, commands run, results, and remaining uncertainty.
A higher score means the tool performed better on this task in this repository. It does not prove that one model is universally better. Repeat the comparison with a bug fix, a small feature, and a code-review task before making a team-wide decision.
Read the complete AI coding-tool comparison