Gemini CLI vs OpenCode: Which AI Agent Is Better?
An in-depth comparison of Gemini CLI and OpenCode across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
An in-depth comparison of Gemini CLI and OpenCode across output quality, autonomy, reliability, speed, value, and ease of use. Vote for your favorite.
Either way, you pay for the model calls. A median coding-agent day on our gateway is 95 requests and 8.6 million tokens. The table prices every step at one model’s rate.
OpenCode runs on Standard Compute, where each step goes to the cheapest model that can do it: routine steps go to efficient open models, hard ones to frontier models such as Claude Fable 5.1 or GPT-6 Astra.
| Model | Typical day | Busy day |
|---|---|---|
| Claude Opus 5.5 | $7.34 | $59.10 |
| Claude Sonnet 5.5 | $3.67 | $29.55 |
| GPT-6 Luna | $0.23 | $2.43 |
Fixed monthly plans from $19. Eligible new accounts can try $0.25 of compute first, no card. Trial terms
Pick a winner in each category. You can change your vote anytime. 5 votes cast so far.
Gemini CLIOpenCodeChoose Gemini CLI if you are teams on Gemini Code Assist or the paid Gemini API who want an open-source terminal agent with huge context. Choose OpenCode if you are terminal users who want a polished AI coding interface with LSP support.
In our editorial scoring, OpenCode leads in 2 of six categories (value and ease of use), while Gemini CLI leads in 1 (speed). On price, Gemini CLI runs paid code assist licence or gemini api key (free tier ended june 2026) and is open source; OpenCode runs free (mit) / free zen models / go $10/mo and is open source.
Across 5 community votes on this matchup, OpenCode currently leads in 2 of six categories. Cast your own vote above to move the needle.
What it costs to run OpenCode
Best API for OpenCode →
7 options compared, with prices and limits
Standard Compute sends each step to the cheapest model that can do it, on providers we vet for price, uptime and speed. Plans start at $19 a month, and eligible new accounts can try $0.25 of compute with no card. Choose your agent below to connect.
See the trial and activation steps →
More on OpenCode: OpenCode Pricing: Plans, Subscription and API Costs (2026) · How do I use Qwen 3.8 in OpenCode?
Gemini CLI is Google's open-source (Apache 2.0) AI agent for the terminal, with a 1M-token context window that can hold entire codebases, MCP servers, Google Search grounding, and shell command execution in an agentic loop. It is no longer free: on June 18, 2026 Google stopped serving Gemini CLI to free accounts and to Google AI Pro and Ultra subscribers, and replaced it for those users with Antigravity CLI. Gemini CLI itself is still maintained and now runs on a Gemini Code Assist Standard or Enterprise licence or a paid Gemini API key.
OpenCode is an open-source (MIT) AI coding agent best known for its terminal TUI, now also shipping a desktop app and IDE extensions with OpenCode 2. It connects to 75+ LLM providers through models.dev, has LSP integration for real code understanding, and runs several sessions in parallel. The tool is free; for models you bring your own key, use OpenCode's free Zen models, pay as you go on Zen, or subscribe to its Go plan ($10/month, Go Plus $40).
OpenCode runs on Standard Compute
