> For the complete documentation index, see [llms.txt](https://docs.qolaba.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.qolaba.ai/getting-started/key-concepts-quick-mental-model.md).

# Key Concepts - Quick Mental Model

<table data-header-hidden><thead><tr><th width="159.21875">Term</th><th>What it means</th></tr></thead><tbody><tr><td>Credits</td><td>The currency used to run AI models. Every action — chat, image, video — costs a fixed number of credits. Credit-based pricing means you pay only for what you use.</td></tr><tr><td>Organization</td><td>Your top-level account. Holds your subscription, credit pool, members, and all workspaces.</td></tr><tr><td>Workspace</td><td>A project-level environment inside an organization. Separate workspaces isolate clients, departments, or projects.</td></tr><tr><td>Models</td><td>The AI engines that power each feature — LLMs for chat, diffusion models for images, etc.</td></tr><tr><td>Agents</td><td>Custom AI personas you build with a system prompt, optional knowledge base, and a chosen model. Agents maintain consistent role behaviour across sessions.</td></tr><tr><td>Toolkit</td><td>A set of capability toggles (web search, file search, image generation, code execution, PII protection, etc.) that extend what the chatbot can do.</td></tr><tr><td>Knowledge Base</td><td>A collection of documents (PDF, DOCX, TXT, images, URLs) the model references before answering in chat.</td></tr></tbody></table>