Gemini CLI vs OpenCode (2026)

Gemini CLI

by Google

OpenCode

by Anomaly Innovations, Inc

Pros

• ✓Open source under Apache 2.0 with 107k GitHub stars and weekly stable releases, so teams can audit, fork and script it.
• ✓Built-in Google Search grounding, web fetch, shell and file tools, plus MCP servers and an extension system for adding more.
• ✓Organizations on Gemini Code Assist Standard or Enterprise keep access with central settings, tool allowlists and enforced sandboxing described in an enterprise guide.

Limitations

• –No longer serves free users or Google AI Pro and Ultra subscribers: since June 18, 2026 it needs a Gemini Code Assist Standard or Enterprise license or a paid API key.
• –Google is moving development focus to Antigravity CLI: Gemini CLI is not optimized for the newest Gemini models, such as Gemini 4 Argon.
• –Built around Gemini models only, so teams that want Claude, GPT or local models need a different terminal agent.

Pros

• ✓Developers can log in with GitHub Copilot or ChatGPT Plus or Pro to reuse existing subscription quotas, or connect any of 75+ providers including local models, with no separate API billing required.
• ✓Multi-session parallel agents run on the same project, and MCP client support covers local and remote servers with OAuth, so tools such as Sentry and Context7 connect inside the same workflow.
• ✓No code or context is stored, the agent is MIT licensed, and Anomaly Innovations publishes a SOC 2 Type 2 report through its Trust Center.

Limitations

• –Permissions start permissive: the Build agent edits files and runs shell commands without an approval prompt until a permission config is written, with only repeated identical calls and paths outside the project gated.
• –Model access is separate from the free agent, so developers pay a provider directly or through Go or Zen, and manage keys and accounts for each provider they use.
• –Enterprise per-seat pricing is quote-only, and the SOC 2 report and Data Processing Agreement are released through the Trust Center on request.