Google Gemini vs OpenCode: Side-by-Side Comparison 2026
Google Gemini vs OpenCode comparison 2026. Side-by-side features, pricing & capabilities.
Google Gemini is an AI assistant from Google — google's ai assistant with coding capabilities. OpenCode is a CLI-based coding agent from SST — open-source terminal ai coding agent.
Google Gemini
Google Gemini is Google's AI assistant powered by Gemini models. A Google AI Pro or Ultra subscription unlocks access to Jules, Gemini CLI, Gemini Code Assist, Firebase Studio, and Google Antigravity.
- ✓ Conversational AI for code generation
- ✓ Image-to-code from screenshots
- ✓ Voice input for coding questions
- ✓ Code explanation and debugging
- ✓ Multi-language code generation
Free / $7.99/mo · 4 plans
OpenCode
Open-source terminal AI coding agent from SST. Free with BYOK, or use OpenCode Zen (pay-per-token) and Black (flat-rate subscription at $20/$100/$200/mo) for managed model access.
- ✓ AI chat
- ✓ Agentic mode
- ✓ Multi-file editing
- ✓ Terminal commands
- ✓ Test generation
Free · 2 plans
| Feature | Google Gemini | OpenCode |
|---|---|---|
| Category | Assistant | CLI |
| Starting Price | Free | Free |
| Model Family | Gemini | Multi-model (any) |
| Agentic Mode | — | ✓ |
| Multi-File Editing | — | ✓ |
| Terminal Commands | — | ✓ |
| Documentation | ✓ | — |
| Voice Input | ✓ | — |
| Open Source | No | Yes (MIT) |
Pricing verified Mar 20, 2026. Google Gemini pricing | OpenCode pricing
Key Differences
- Category: Google Gemini is an AI assistant; OpenCode is a CLI-based coding agent.
- Starting price: Google Gemini starts at $7.99/mo; OpenCode starts at free / BYOK.
- Model family: Google Gemini uses Gemini; OpenCode uses Multi-model (any).
- Agentic mode: OpenCode supports agentic mode; Google Gemini does not.
- Open source: Google Gemini: No. OpenCode: Yes (MIT).
- Bring your own key: OpenCode supports BYOK; Google Gemini does not.
- Platforms: Google Gemini runs on Android, Web, iOS, macOS; OpenCode runs on Linux, Windows, macOS.
- Provider: Google Gemini is built by Google; OpenCode is built by SST.
- Capabilities: OpenCode has multi-file editing; OpenCode has terminal commands; Google Gemini has voice input.
Which Should You Choose?
Choose Google Gemini if you want a great-value subscription with multiple coding tools included. Choose OpenCode if you want open-source terminal-based coding with model flexibility. Read our full reviews to see which fits your workflow.