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OpenCode vs Cline vs Aider

Three AI coding tools you can obtain yourself: license, surface, and who pays for the model. Star counts stay on each tool page and are not compared here.

  • No overall score
  • No winner
  • Column order is reading order

Facts side by side

License

OpenCode
MIT, repository anomalyco/opencode.
Cline
Apache-2.0, repository cline/cline.
Aider
Apache-2.0, repository Aider-AI/aider.

Surface

OpenCode
Terminal or a companion UI.
Cline
IDE extension, CLI, or SDK.
Aider
Pair programming in the terminal.

Model cost

OpenCode
The software is free to obtain. Model API calls are billed by the model provider.
Cline
The software is free to obtain. You connect and pay for your own model.
Aider
The software is free to obtain. You bring your own model.

Summary

All three are open-source coding tools under MIT or Apache-2.0. They are not tied to one vendor subscription, and model charges are separate. Repository stars change; use the date on each tool page. They are not a quality ranking.

Tool records and official sources

These dates belong to each tool’s catalog source-check record. Confirm current features, allowances, and costs on the official pages. A source check is not hands-on testing or a security audit.

Tools in this comparison

Stars are hidden here. Attention is not a comparison dimension; each tool page still shows its stars.

  • OpenCode

    anomalycoCoding agents

    An open-source coding agent. The repository license is MIT, and its star count is high in this catalog.

    FreeFeaturedMIT
  • Cline

    ClineCoding agents

    A coding agent as an IDE extension, CLI, or SDK. Apache-2.0.

    FreeApache-2.0
  • Aider

    AiderCoding agents

    Pair programming in the terminal. The repository license is Apache-2.0.

    FreeApache-2.0