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

Key Concepts

• Open Code: A free, open-source AI coding agent built within the terminal, offering multi-agent support and a GUI similar to Claudia.
• Multi-Agent Support: The ability to run multiple AI agents in parallel on the same project.
• Themable Terminal UI: Open Code provides a customizable terminal user interface, unlike basic text interfaces of other tools.
• Model Routers: Open Code supports over 75 models through various routers, including free APIs from Google and OpenRouter.
• Sharable Session Links: Enables collaboration by sharing active coding sessions with others.
• CLI Coding Agent Battle Royale: A competitive test used to assess the performance and stability of AI coding agents.

1. Introduction to Open Code

• Open Code is presented as a new, free, and open-source alternative to Gemini CLI and Cloud Code.
• It's described as an AI coding agent accessible directly within the terminal.
• Key differentiators are its multi-agent support, Claudia-like GUI, and extensive model compatibility.

2. Open Code vs. Previous Open Code Project

• The video acknowledges a previous "Open Code" project that has been abandoned by its developers.
• The current Open Code is presented as more polished and feature-rich.

3. Comparison with Cloud Code and Gemini CLI

• User Interface: Open Code offers a native themable terminal UI, while Cloud Code and Gemini CLI use basic text interfaces.
• Accuracy: Cloud Code utilizes Language Server Protocol (LSP) for enhanced code accuracy, whereas Open Code relies primarily on LLMs, which might lead to more errors.
• Multi-Agent Workflows: Open Code supports parallel agents on the same project, a feature absent in Cloud Code and Gemini CLI.
• Collaboration: Open Code allows sharable session links, facilitating collaboration, unlike its competitors.
• Model Access: Open Code supports 75+ models through diverse routers, including free APIs. Cloud Code and Gemini CLI are limited to their native ecosystems.
• Open Code is characterized as more flexible, collaborative, and accurate, continuously developed by the community.

4. CLI Coding Agent Battle Royale

• The "CLI Coding Agent Battle Royale" is a competitive test where multiple AI coding agents compete to eliminate each other by making their processes quit.
• Open Code was the last one standing, demonstrating its problem-solving capabilities, efficiency, adaptability, execution, and stability.
• The objective of the test is to be the last AI standing by prompting the other AIs to make incorrect actions, therefore making their processes quit.

5. Setting up Open Code

• Installation is straightforward, using npm install -g opencodes (example).
• The command to start Open Code is simply opencodes.
• Users can select from various models, with a recommendation to use Google's Gemini 2.5 Pro due to its free tier.
• API keys can be obtained from Google AI Studio or through OpenRouter for accessing free APIs.
• After setup, users are greeted with the main GUI, which provides various commands accessible by typing /.

6. Open Code GUI Features

• Command Flexibility: Numerous commands available for editor usage, model selection, session management, and more.
• Model Configuration: Users can configure models, including custom and local models (using Ollama or LM Studio), via the opencodes.json file. Configuration includes setting providers, API keys, and base URLs for local models.
• Session Management: Ability to create and manage multiple sessions within the same terminal.
• Sharing Sessions: Feature to share the current coding session with others via a sharable link.
• Theming: A variety of themes are available to customize the look of the terminal UI.
• MCP Servers: Open Code provides different local servers that you can configure within the JSON file.

7. Practical Example: Creating a SaaS Landing Page

• A live demonstration involves requesting Open Code to create a SaaS landing page.
• The agent develops a plan including HTML structure and CSS styling.
• The generated content is displayed in the terminal and can be opened in a defined editor.
• A sharable link provides a preview of the generation process and the plan.
• The resulting landing page includes animations and is developed quickly.

8. Multi-Session Use Case

• Users can create multiple sessions to work on different aspects of a project, such as front-end and back-end features.
• The sessions tab allows easy switching between active sessions.

9. Additional CLI Tools and Support

• Various CLI tools are available, such as input clear, input paste, and input submit.
• The video mentions supporting the channel through Super Thanks or joining a private Discord for access to AI tools and exclusive content.

10. Conclusion

• Open Code is recommended as a fast and efficient CLI tool, potentially superior to Gemini CLI and Cloud Code in terms of efficiency and accessibility.
• It offers a wide range of models and is under continuous community development.