Software Alternatives, Accelerators & Startups

opencode VS Gemini CLI

Compare opencode VS Gemini CLI and see what are their differences

opencode logo opencode

The AI coding agent, built for the terminal.

Gemini CLI logo Gemini CLI

Free and open source, Gemini CLI brings Gemini directly into developersโ€™ terminals โ€” with unmatched access for individuals.
  • opencode Landing page
    Landing page //
    2026-04-28
Not present

opencode features and specs

No features have been listed yet.

Gemini CLI features and specs

  • Open Source
    Gemini CLI is available as an open-source project, which allows for community contributions, transparency, and encourages wide adoption.
  • Integration with Google APIs
    The tool is designed to work seamlessly with Google APIs, making it easier for developers to integrate various Google services into their workflow.
  • Command Line Interface
    Provides a powerful and flexible command line interface that allows advanced users to automate tasks and integrate the tool into scripts and larger workflows.
  • Cross-Platform Support
    Gemini CLI supports multiple operating systems, making it accessible to users regardless of their preferred platform.

Possible disadvantages of Gemini CLI

  • Learning Curve
    Users may face a steep learning curve if they are not familiar with command line tools or the specific Google APIs that Gemini CLI interacts with.
  • Limited Documentation
    The tool's documentation may be limited, making it challenging for new users to fully understand and utilize all its features without external help.
  • Dependency on Google Services
    Since Gemini CLI is designed to work with Google APIs, users are heavily dependent on Google's services and ecosystem, which may not be ideal for everyone.
  • Potential for Rapid Changes
    As an open-source project backed by Google, there might be frequent updates and changes which can disrupt users' existing workflows if not managed properly.

Analysis of opencode

Overall verdict

  • OpenCode is a solid open-source AI coding assistant that brings terminal-native, model-agnostic development workflows to developers who value flexibility and control over their tooling.

Why this product is good

  • Open-source and transparent, allowing developers to inspect, modify, and self-host the tool
  • Model-agnostic design lets you use various LLM providers rather than being locked into a single vendor
  • Terminal-native workflow integrates smoothly into existing developer environments
  • Active development and community support keep the tool evolving with new features
  • Can help automate coding tasks, refactoring, and code understanding directly from the command line

Recommended for

  • Developers who prefer command-line and terminal-based workflows
  • Teams and individuals wanting flexibility to choose their own AI model providers
  • Open-source enthusiasts who value transparency and self-hosting options
  • Engineers looking to automate repetitive coding tasks and speed up development
  • Privacy-conscious users who want more control over their data and tooling

Analysis of Gemini CLI

Overall verdict

  • Gemini CLI is a solid, open-source command-line tool that brings Google's Gemini AI models directly into the terminal, making it a powerful and accessible option for developers who want AI assistance in their workflow.

Why this product is good

  • Free and open-source, allowing transparency and community contributions
  • Integrates Google's powerful Gemini models directly into the terminal environment
  • Generous free tier with high request limits for individual developers
  • Supports coding tasks, debugging, file manipulation, and automation workflows
  • Extensible with support for MCP (Model Context Protocol) and custom tooling
  • Backed by Google, ensuring ongoing development and model improvements

Recommended for

  • Developers who prefer working within the terminal and CLI environments
  • Engineers looking for AI-assisted coding, debugging, and refactoring
  • Teams wanting a free, open-source alternative to proprietary AI coding assistants
  • DevOps professionals automating scripts and workflows
  • Users already invested in the Google/Gemini ecosystem
  • Open-source enthusiasts who value customizable and extensible tooling

opencode videos

OpenCode: FASTEST AI Coder + Opensource! BYE Gemini CLI & ClaudeCode!

More videos:

  • Review - OpenCode: The ULTIMATE AI Coding Agent (By SST)
  • Review - FREE OpenCode SST Beats Google Gemini CLI, Claude Code, & Codex?! Open Source AI Coding CLI

Gemini CLI videos

OpenCode: FASTEST AI Coder + Opensource! BYE Gemini CLI & ClaudeCode!

More videos:

  • Review - Gemini CLI Kinda Sucks (I Compared It With Claude Code)
  • Review - Gemini CLI Review: The Brutal Truth About Google's Free AI Coder

Category Popularity

0-100% (relative to opencode and Gemini CLI)
Developer Tools
78 78%
22% 22
AI
78 78%
22% 22
Coding
84 84%
16% 16
Terminal Tools
100 100%
0% 0

User comments

Share your experience with using opencode and Gemini CLI. For example, how are they different and which one is better?
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Social recommendations and mentions

Based on our record, opencode should be more popular than Gemini CLI. It has been mentiond 69 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

opencode mentions (69)

  • ๐ŸŒฑ OpenSpec Is Built for Brownfield. I Used It to Build From Nothing.
    I drove it from my coding-agent with a handful of commands. - Source: dev.to / 1 day ago
  • Grammar.lol: open-source Grammarly using existing ChatGPT or Grok Subscription
    Https://pi.dev/docs/latest/providers#openai-codex is specific that it "Requires ChatGPT Plus or Pro subscription". https://opencode.ai are also both specific that it's for "Plus/Pro" subscriptions. Is there some link where you saw free tier Codex use in non-official apps is allowed by OpenAI? (I have used the free tier in the official Codex app, but as you said, labs can have different rules for official vs... - Source: Hacker News / 5 days ago
  • ZCode: Claude Code from the Makers of GLM
    Https://opencode.ai/ OpenCode was the first agent harness I used, and I have always like it. You can configure a wide variety of providers, but it's open source and has a number of core contributors. The other opinionated option is Pi (the Pi agent harness). This is a great lightweight option and also supports a number of providers. You can also use local model servers. - Source: Hacker News / about 1 month ago
  • AI for Less Popular Programming Languages
    OpenCode with GLM 5.2 wrote custom Emacs Lisp to pinpoint within the file where the missing or extra bracket could be. It rewrote the custom code to check various parts of the file. Each of those is a tool use and many, many tokens burned. The next step is to turn those custom scripts written by the AI agent into a tool to speed up the process, or a skill that shows how to use other tools to speed up the process. - Source: dev.to / about 1 month ago
  • How to Run Reliable Local LLM Agents on an RTX 3090: A Benchmark (5 Models, Priced in Watts)
    I gave GLM-4.5-Air (106B, open weights) 12 coding tasks through opencode on my RTX 3090. It scored 0% โ€” never edited a single file. - Source: dev.to / about 1 month ago
View more

Gemini CLI mentions (32)

  • Best Vibe Coding Tools for SaaS in 2026
    Google launched Gemini CLI on June 25, 2025 under the Apache 2.0 license (Google 2025). It's the only fully open-source option in this group, with a 1M-token context via Gemini 2.5 Pro and a personal-account free tier of 60 requests per minute and 1,000 requests per day. The GitHub repo at google-gemini/gemini-cli is active; GitHub Actions integration landed in late 2025. - Source: dev.to / 2 months ago
  • Gemini CLI will stop working from June 18, 2026
    Gemini CLI was open source (Apache 2): https://github.com/google-gemini/gemini-cli Antigravity CLI is not - the repo has a README and an animated gif demo: https://github.com/google-antigravity/antigravity-cli. - Source: Hacker News / 3 months ago
  • Claude Code's source code has been leaked via a map file in their NPM registry
    Is https://github.com/google-gemini/gemini-cli not 'the flagship agent' itself? It looks that way to me, for example here's a part of the prompt https://github.com/google-gemini/gemini-cli/blob/e293424bb4973fc2a281f67c43594222263b240a/packages/core/src/prompts/snippets.ts#L178-L250. - Source: Hacker News / 4 months ago
  • Is WordPress dead? (Or just too stubborn to notice?)
    We now have AI coding tools โ€” Claude Code, OpenAI Codex, Google Gemini CLI โ€” that can generate a complete, production-ready website from a conversation. Not a template. Not a wireframe. An actual, deployable site. - Source: dev.to / 4 months ago
  • Making Sure Your Prompt Will Be There For You When You Need It
    Trying to make samples in large batches is different from asking for a single sample from a tool like Gemini CLI. When producing many samples at once, we see more mistakes because the statistics catch up with us. A small percentage of bad samples becomes a large number once the overall number of samples gets higher, not unlike issues in manufacturing. Here are some examples of mistakes. - Source: dev.to / 5 months ago
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What are some alternatives?

When comparing opencode and Gemini CLI, you can also consider the following products

Claude Code - Transform hours of debugging into seconds with a single command. Experience coding at thought-speed with Claude's AI that understands your entire codebaseโ€”no more context switching, just breakthrough results.

Cursor - The AI-first Code Editor. Build software faster in an editor designed for pair-programming with AI.

Google Antigravity - Google Antigravity - Build the new way

ChatGPT to Notion - ChatGPT to Notion lets you quickly and easily export and organize multiple ChatGPT conversations into your Notion workspace with one click.

warp by spolu - Secure and simple terminal sharing

Void Editor - Void is an open source Cursor alternative. Full privacy. Fully-featured.