Comparison ยท updated
Mirror CLI vs OpenCode (2026): which should you use?
Pick OpenCode if you want a proven open-source agent with more ways to use it and broad model support.
Verdict
Pick OpenCode if you want a proven open-source agent with more ways to use it and broad model support. Try Mirror CLI if you want to run Reflection's Beam in the harness it was trained with, and accept beta rough edges. Both tools are open source; you pay for the model you use.
| Mirror CLI | OpenCode | |
|---|---|---|
| License and maturity | Apache-2.0, early beta released by Reflection on Oct 16, 2026 | MIT, established project; version 2.0 shipped Oct 12, 2026 |
| Clients | Terminal only | Terminal, desktop and web clients on one shared local service |
| Models | Defaults to Reflection's Beam; also OpenAI, Anthropic, OpenRouter or any OpenAI-compatible endpoint | Bring your own model from many providers, including Beam |
| Parallel work | Separate worktrees, each with its own agent and conversation | Background subagents since 2.0 |
Based on each product's official site: Mirror CLI, OpenCode. Features change often, so check before you buy.
Questions
Frequently asked
Which is better, Mirror CLI or OpenCode?
Pick OpenCode if you want a proven open-source agent with more ways to use it and broad model support. Try Mirror CLI if you want to run Reflection's Beam in the harness it was trained with, and accept beta rough edges. Both tools are open source; you pay for the model you use.
How do Mirror CLI and OpenCode compare on license and maturity?
Mirror CLI: Apache-2.0, early beta released by Reflection on Oct 16, 2026. OpenCode: MIT, established project; version 2.0 shipped Oct 12, 2026.
How do Mirror CLI and OpenCode compare on clients?
Mirror CLI: Terminal only. OpenCode: Terminal, desktop and web clients on one shared local service.
When was this comparison last updated?
This comparison was last updated on 2026-10-17. Features change often, so check each official site before you buy.
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