Guides

Find the right AI guide faster.

Guides are step-by-step walkthroughs for building with open-source AI: each one takes you from concept to a working setup. Search guides covering local AI, RAG, coding agents, MCP, security, deployment, audio transcription, model selection, and workflow planning.

Updated as tools, models, and setups change

17Total guides
8Categories
13Start-here picks

Practical over promotional

Guides prioritize working setup steps over generic AI hype.

Sourced and testable

Steps link to official docs, tools, and models you can verify yourself.

Updated as tools change

Guides are revisited as runtimes, models, and setups evolve.

Choosing models for real workflows? Start with local setup, model selection, or Whisper model sizing before wiring tools together.

Set up local LLMs on Windows →

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Start with a practical build path

These guides answer the most common first questions before you choose tools, models, or integrations.

Knowledge base tracks

Browse guides by technical track

Select a track to focus on that topic, or browse all tracks below. Each track maps to a category in the OpenSourcesAI Knowledge Base.

Showing 17 of 17 guides.

Guide

What Is a Local LLM?

A plain-English guide to local large language models: how they work, what hardware they need, when to use them, and how to get started with Ollama or LM Studio.

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Guide

What Is VRAM and How Much Do You Need for Local AI?

Understand GPU memory limits, quantization tradeoffs, KV cache math, and the exact formulas to match model size to your hardware before downloading anything.

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Guide

What Is an AI Stack?

The set of separate programs you run together to get working local AI: model, runtime, interface, and optional retrieval and tools. Which layers you need, and the smallest stack that works.

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Guide

What Is RAG?

Retrieval-augmented generation in plain English: how a model answers from your own documents by looking them up at question time, why it is not fine-tuning, and when you do not need it.

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Guide

How to Set Up Local LLMs on Windows in 2026

A practical Windows setup guide for Ollama, LM Studio, Open WebUI, coding assistants, model testing, and local RAG foundations.

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Guide

Build a Local RAG Stack with Ollama, Open WebUI, and Qdrant

A practical local RAG guide for document prep, Qdrant, embeddings, retrieval testing, Open WebUI, and Ollama workflows.

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Guide

Whisper Model Sizes: Tiny vs Base vs Small vs Medium vs Large

Compare Whisper tiny, base, small, medium, large, large-v3, large-v3-turbo, and faster-whisper for local transcription workflows.

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Guide

What Is MCP for AI Agents?

A practical explanation of Model Context Protocol, reusable MCP servers, and where MCP fits in AI agent workflows.

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Guide

Choose an AI Model by Use Case

A builder-first decision guide for choosing open models by task instead of hype.

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Guide

Open Weight vs Open Source AI

What "open source AI" means under the OSI definition, how it differs from open weights and openly licensed weights, and where each model in this catalog stands.

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Guide

What Is Quantization?

Compressing model weight precision (e.g. 16-bit → 4-bit) to cut memory use. Q4 models run on half the VRAM with a small quality tradeoff.

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Guide

Linux for Local AI: What Actually Breaks and How to Fix It

A calm, source-backed Linux setup guide: NVIDIA Secure Boot and driver updates, AMD ROCm vs Vulkan, RTX 50 requirements, kernel age, Intel Arc, and verification commands.

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Guide

What Is a Reranker in RAG?

A practical explanation of rerankers, where they fit after vector search, and how to evaluate them in RAG pipelines.

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Guide

Ollama vs LM Studio vs Jan

A three-way guide to choosing a local model runner for CLI, desktop, and open-source workflows.

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Guide

API Key Security for AI Builders

A practical security checklist for AI builders managing model provider keys, vector database credentials, hosting access, and team vaults.

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Guide

Web Data for AI Apps: Responsible Workflows for RAG, Research, and Monitoring

A practical guide to public web data workflows for AI apps, RAG enrichment, market intelligence, SERP monitoring, and research automation.

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Guide

Run Grok Build with a Local Model (Ollama)

Point xAI's Apache 2.0 terminal coding agent at a model on your own GPU through Ollama's OpenAI-compatible endpoint, with the config.toml recipe and a clear line between what xAI documents and what is untested.

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Hands-on next step

Use guides with the Playground and stack recipes.

Read the guide, test the idea in browser when possible, then move into the relevant stack page to build the workflow.