Coplay integrates seamlessly with Unity through an intuitive interface designed to enhance your game development workflow. This guide explains all the UI elements you’ll encounter when using Coplay.

​
Context

The Context dropdown determines what information Coplay has access to when responding to your queries:

  • File Tree: Provides access to your project’s file structure
  • Project Settings: Gives context about your Unity project configuration
  • Active Scene: Includes information about the currently open scene
  • Git History: Provides access to version control information
  • Packages: Shows information about installed packages

Example usage: Select “Active Scene” when asking Coplay to help optimize game objects in your current scene, or select “Project Settings” when troubleshooting configuration issues.

​
Mode

The Mode dropdown lets you select specialized AI modes optimized for different tasks:

  • Normal: Balanced mode for general Unity development queries
  • Agent: A more careful mode designed for more complex tasks involving longer, step-by-step reasoning.
  • SceneGeneration: Specialized mode for creating and modifying Unity scenes
  • UIGeneration: Focused on UI development tasks and solutions

Example usage: Switch to “SceneGeneration” mode when asking Coplay to help design a level layout, or use “UIGeneration” when working on your game’s user interface elements.

​
Model

Coplay lets you choose between the latest AI models from major foundational providers like OpenAI, Anthropic, Google, and X.AI. Each model offers distinct advantages for different Unity development tasks:

​
Anthropic

  • claude-3-7-sonnet: (Default) Balanced model with exceptional reasoning capabilities and deep understanding of Unity concepts, excellent for complex architectural decisions, debugging logic errors, and explaining game mechanics with detailed, well-structured responses.

​
Inception

  • mercury-coder-small: Experimental and small context but much faster at executing sequential functions.

​
OpenAI

  • gpt-4.1: Superior code generation with extensive Unity API knowledge that excels at implementing complex gameplay systems, shader programming, and optimizing performance-critical code with detailed explanations.
  • o3: Fast, cost-effective model for straightforward development tasks, good for quick syntax questions, simple script generation, and basic Unity workflow assistance during prototyping phases.
  • o4-mini: Optimized for quick responses with good balance of speed and capability, effective for common Unity tasks like component setup, basic animations, and UI scripting with concise, practical answers.

​
X.AI

  • grok-3: Novel reasoning approach that excels at creative problem-solving and unconventional solutions, particularly strong with procedural generation, AI behavior systems, and mathematical problems in game development.

​
Google

  • gemini-2-5-pro: Comprehensive knowledge of Unity’s ecosystem with strong multimodal capabilities that excels at analyzing visual elements, scene composition, and asset organization, particularly effective for graphics programming and performance optimization.
  • gemini-2-5-flash: Optimized for speed and efficiency with good baseline understanding of Unity concepts, ideal for quick reference questions, syntax checking, and basic troubleshooting when immediate guidance is needed.

Example usage: Select “claude-3-7-sonnet” for complex programming tasks, or switch to “o4-mini” when you need quick responses for simpler questions.

​
Action Recording

Coplay can record your actions in the Unity Editor, allowing you to:

  1. Track movements and changes to game objects
  2. Delete specific recorded actions using the ”×” button
  3. Clear all recorded actions at once
  4. Save recordings for future reference

When you’ve finished recording actions, you can save them with a custom name and use them for additional context in future tasks.

Example usage: Record a sequence of object placements to document your level design process, then ask Coplay to analyze the pattern or suggest improvements.