Frequently Asked Questions
Frequently Asked Questions
How much does it cost to use the AI? Is there a free option?
The plugin is a one-time purchase on FAB. No subscriptions, no credits, no monthly fees.
For AI usage, you have several options:
- Free Built-In AI: The plugin ships with two free-tier slots that use real models. No API key required — works immediately after activation. See Free Tier.
- Free API Keys: Google Gemini offers free API keys with generous limits. Get yours from Google AI Studio.
- Paid API Keys: Use OpenAI, Claude, DeepSeek, OpenRouter, or any OpenAI-compatible endpoint. You pay the provider directly — typically a few cents per conversation.
- AI Agents: Run Claude Code, Codex, GitHub Copilot, or Gemini CLI directly inside the editor. Each agent uses its own pricing (some included in subscriptions).
- Local LLMs: Run entirely on your machine with zero internet. Works with Ollama, LM Studio, Lemonade. Completely free. See Local LLM Setup.
Is my code sent to external servers? Can I keep everything private?
You have full control:
- Cloud API Providers (Google/OpenAI/Claude/DeepSeek): Your prompts and context are sent to the AI provider for processing, standard for all AI tools.
- Local LLMs: Everything stays on your machine. Zero data sent anywhere. Perfect for sensitive or NDA projects.
- AI Agents: When using CLI agents, data flows through the agent’s own API with its own privacy policy.
- Free Tier: Prompts route through BlueprintsLab proxy servers to the AI provider. No data is stored on the proxy.
How does this copilot compare to other AI plugins?
Scope. Other plugins handle a handful of tasks. This is an engine-wide copilot covering 56 tool categories with 975 actions. It generates full Blueprint logic, animation state machines, material graphs, Niagara VFX systems, UMG widget layouts, behavior trees, state trees, sequencer cinematics, PCG procedural worlds, and more from natural language. It generates assets from text (textures, PBR materials, 3D models, sounds). It runs 4 concurrent AI agents inside the editor. It has a built-in learning ecosystem with courses and a skill tree. One-time payment. Full C++ source code. Free AI usage included. 20 languages supported. Windows, Mac, and Linux.
Is this just for beginners? Or can experienced developers use it too?
Both. For beginners, it’s the ultimate learning tool with built-in courses, video tutorials, and a skill tree that teaches Unreal Engine fundamentals. For experienced developers, it’s a massive productivity multiplier — generate entire gameplay systems in minutes, scaffold UI layouts from a description, build cinematics with camera rigs, create PCG scatter systems, and automate repetitive tasks.
Do I need to know C++ to use this?
Not at all. The primary way to use the plugin is with plain English (or your native language — 20 supported). The C++ tools are entirely optional and designed for advanced users. The included source code is for transparency and modification, not required to operate the plugin.
Does this work in languages other than English?
Yes. The entire plugin UI supports 20 languages. You can write prompts in your native language and the AI generates the correct Blueprint logic, materials, animations, and everything else. See Supported Languages.
What AI providers are supported?
Cloud: OpenAI (GPT-4, GPT-4o, o1, o3), Claude (Sonnet, Opus, Haiku), Google Gemini (Flash, Pro), DeepSeek, and any model via OpenRouter.
Agents: Claude Code, OpenAI Codex, GitHub Copilot, and Google Gemini CLI — all run directly inside the editor.
Local: Any OpenAI-compatible local server (Ollama, LM Studio, Lemonade, vLLM, LocalAI, Jan).
Custom: Any endpoint that accepts the OpenAI chat completions format.
Free: Two built-in free-tier slots, no API key needed.
What Unreal Engine versions are supported?
UE 5.5, 5.6, and 5.7. Windows, macOS, and Linux (Editor only — this is a development tool, not a runtime plugin).
What is your update and support policy?
Lifetime updates included. Your one-time purchase grants access to all future features and engine version support. AI prompt files and tool documentation update automatically from the cloud without requiring a new plugin download.
For support: join our Discord community, or use the built-in Report button in the Architect view to send bug reports directly to us (with optional image attachments).
Can I use this with my existing projects?
Yes. The copilot works with any UE 5.5+ project. No migration or special setup required. Just install the plugin and open it from the Window menu.
What’s included in the C++ source?
Full source code for the entire plugin. Every tool, every manager, every UI component. Modify it, extend it, or learn from it. The source is included for transparency — you don’t need to touch it to use the plugin.
Can I use this with MCP / Claude Desktop / external tools?
Yes. The plugin runs an MCP server on TCP port 9877. Claude Desktop, Claude Code, and any MCP-compatible client can connect and use all tools. See MCP Integration.
What happens when I hit the free tier token limit?
Requests are rejected until the reset timer expires (24 hours for Slot 1, 6 hours for Slot 2). You can switch to the other slot, use a free Gemini API key, or bring your own API key for unlimited usage. See Free Tier.
Can I transfer my license to another machine?
Your license works on the machines linked to your FAB/Epic account. There are no arbitrary device limits — the plugin validates your purchase through FAB’s standard licensing. If you switch machines, just install and activate on the new one.
What are the system requirements?
The plugin runs wherever UE 5.5+ runs. No special hardware is required beyond what Unreal Editor needs. For local LLMs, you’ll need a GPU with enough VRAM for your chosen model (8GB+ recommended for 7B models, 16GB+ for 13B+).
Where is plugin data stored?
| Data | Location |
|---|---|
| Settings | {ProjectDir}/Saved/Config/ (ini files) |
| Conversation history | {ProjectDir}/Saved/BpGeneratorUltimate/ |
| AI Memory | {ProjectDir}/Saved/BpGeneratorUltimate/ai_memory.json |
| GDD files | {ProjectDir}/Saved/BpGeneratorUltimate/gdd/ |
| Project scan index | {ProjectDir}/Saved/AI/ProjectIndex.json |
| Exported conversations | {ProjectDir}/Saved/Exported Conversations/ |
| Global settings | ~/.config/BpGeneratorUltimate/ (cross-project) |
When should I use AI Agents vs API Keys?
| Use Case | Recommendation |
|---|---|
| Quick one-off tasks | API key or free tier — faster startup, no CLI needed |
| Complex multi-step generation | AI Agent — agents reason more deeply and chain tools better |
| Maximum speed | API key with a fast model (Gemini Flash, GPT-4o-mini) |
| Best reasoning quality | Claude Agent with high thinking effort |
| Budget-conscious | Free tier, or Google Gemini free API key |
| Complete privacy | Local LLM (Ollama, LM Studio) |
| No internet | Local LLM |
I have an idea for a feature! Are you open to suggestions?
Absolutely. Join the Discord and share your ideas. The best features often come from user suggestions.