MarsCode vs OpenCode
MarsCode
marscode.com
OpenCode
opencode.aiSide by side
| Figure | MarsCode | OpenCode |
|---|---|---|
| Price from | Free | $10/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | Yes |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 6 | 9 |
| Spec score · AI Coding Assistants | 8.1 (#61) | 9.3 (#6) |
| Coding agent | Yes | Yes |
| Chat assistance | Yes | Yes |
| Codebase indexing | Yes | Yes |
| Free plan | Yes | Yes |
| Supported IDEs | VS Code,JetBrains IDEs | Visual Studio Code,Cursor,Zed,Windsurf,VSCodium |
Plans
MarsCode
- FreeFree
- LitePrice not published
- ProPrice not published
- Pro+Price not published
- UltraPrice not published
- FreeFree
OpenCode
- OpenCode Go$10 a month
- Free OpenCodeFree
- OpenCodeFree
- Go$10 a month
- OpenCode Zen$20, paid once
- Go Plus$40 a month
- EnterprisePriced on request
- OpenCode EnterprisePriced on request
- ZenPriced on request
In their own words
OpenCode
OpenCode is an open source AI coding agent for working in a terminal, IDE, or desktop app. It provides chat assistance, agent mode, terminal access, and codebase indexing, and supports more than 75 LLM providers as well as local models. The software can load language servers for the selected model and coordinate multiple agents on one project. Editor extensions are listed for Visual Studio Code, Cursor, Zed, Windsurf, and VSCodium; GitHub and GitLab integrations are also available. Users can share session links, while conversations are private by default. OpenCode says it does not store code or context data. The free plan includes the open source agent and free models, or users can connect a model provider. OpenCode Go costs $10 a month and lists usage limits of $12 per 5 hours, $30 per week, and $60 per month. The site recommends WSL for Windows users for performance and full feature compatibility.