Gemini CLI vs OpenCode: Side-by-Side Comparison 2026
Gemini CLI vs OpenCode comparison for 2026. Features, pricing, AI capabilities, and editor support analyzed side by side to help you choose the right coding tool for your workflow.
Gemini CLI is a CLI-based coding agent from Google — open-source ai agent for your terminal. OpenCode is a CLI-based coding agent from SST — open-source terminal ai coding agent.
Gemini CLI
Open-source AI agent that runs in your terminal. Uses a ReAct loop with built-in tools for file operations, shell commands, web search, and MCP server support. Free with generous daily limits.
- ✓ ReAct agentic loop
- ✓ File operations and shell commands
- ✓ Web search grounding
- ✓ MCP server support
- ✓ 1M token context window
Free · 4 plans
OpenCode
Open-source terminal AI coding agent from SST. Free with BYOK, or use Go ($10/mo for curated open-source models), Zen (pay-per-token), or Black (flat-rate subscription at $20/$100/$200/mo, currently paused) for managed model access.
- ✓ AI chat
- ✓ Agentic mode
- ✓ Multi-file editing
- ✓ Terminal commands
- ✓ Test generation
Free / $10/mo · 4 plans
| Feature | Gemini CLI | OpenCode |
|---|---|---|
| Category | CLI | CLI |
| Starting Price | Free | Free |
| Model Family | Gemini | Multi-model (any) |
| Git Integration | ✓ | — |
| Open Source | Yes (Apache 2.0) | Yes (MIT) |
Pricing verified May 4, 2026. Gemini CLI pricing | OpenCode pricing
Key Differences
- Starting price: Gemini CLI starts at free / BYOK; OpenCode starts at $10/mo.
- Model family: Gemini CLI uses Gemini; OpenCode uses Multi-model (any).
- Open source: Gemini CLI: Yes (Apache 2.0). OpenCode: Yes (MIT).
- Provider: Gemini CLI is built by Google; OpenCode is built by SST.
Which Should You Choose?
Choose Gemini CLI if you want AI pair programming directly in your terminal. Choose OpenCode if you want open-source terminal-based coding with model flexibility. Read our full reviews to see which fits your workflow.