OpenCode, Aider or Cline: open-source coding agents
Three open-source coding agents compared on license, pricing model, platforms, latest published release and MCP support, with sources for every row.
| Compared tools | License | Pricing | Pricing details | Platforms | Version | latest_version_date | MCP support |
|---|---|---|---|---|---|---|---|
| OpenCode 2.0 | MIT | Free | Free agent under the MIT License (github.com/anomalyco/opencode); bring any model provider, or use the optional pay-as-you-go OpenCode Console (source: https://opencode.ai/docs/zen/). | CLI, Desktop | — | — | Yes |
| Aider | Apache-2.0 | Free | Free tool; you pay the provider of the model you pick (Anthropic, OpenAI, DeepSeek…) or run a local model (source: aider.chat). | CLI | v0.86.0 | — | |
| Cline | Apache-2.0 | Free | Free for individuals, usage-based inference (your keys or the Cline provider); Enterprise on request with JetBrains extension, SSO and SLA (source: cline.bot/pricing). | IDE, CLI, Desktop | v4.1.25 (extension) | Yes |
All three tools are free; the real cost depends on the model and provider you plug in. Versions checked on GitHub, npm and changelogs on October 20, 2026.
Sources
Verified
- OpenCode: changelog
- npm: @opencode/cli package (2.x releases)
- GitHub: OpenCode 1.19.0 (v2 upgrade)
- OpenCode: Zen documentation (pricing)
- Aider: official site
- GitHub: Aider-AI/aider repository (Apache-2.0 license)
- GitHub: release v0.86.0 (Aug 9, 2025)
- Cline: pricing
- GitHub: cline/cline repository (Apache-2.0 license)
- GitHub: Cline releases