ModelRefs / AI Implementation Guides
AI Implementation Guides
Evidence-aware guides for model, provider, benchmark, workflow, architecture, and governance decisions.
Overview
ModelRefs' guides hub collects decision frameworks for common implementation choices — model selection, benchmark interpretation, workflow architecture, provider evaluation — rather than promotional or generic AI content aimed at driving a single recommendation.
Use a guide to structure your own evaluation: identify the criteria that matter for your constraints, compare a small candidate set against those criteria, and confirm time-sensitive assumptions against current sources before committing to an approach.
Guides provide a starting framework, not a guaranteed outcome. Examples, criteria weightings, and candidate lists should be adapted to your own workload, and details like pricing, availability, or benchmark protocol need direct verification since they change over time.
Choose between the options
Long-form guides that walk a single decision end to end, with the trade-offs and the evidence to weigh them against.
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How to Choose a Model for AI Agents (A Decision Guide)
There's no single best model for agents. Choose by your agent's shape and constraints, weigh tool-calling reliability first, and test on your own tasks.
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Fine-Tuning vs. RAG vs. Long-Context: A Cost-and-Constraints Decision Guide
RAG, long-context, and fine-tuning answer different questions. Choose by data volatility, corpus size, and cost per query, with the math and evidence shown.
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Structured Data for Technical Content: What JSON-LD Does and Doesn't Do
What Google and Bing actually say about JSON-LD and AI answers, which schema types fit technical articles, a checker script, and what it found on this site.
Explore guide categories
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model-selection
Choose models by use case, capability, constraints, and implementation trade-offs.
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provider-selection
Compare provider options, deployment paths, APIs, pricing factors, and operational constraints.
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benchmark-interpretation
Understand benchmark results, limitations, evaluation context, and practical relevance.
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workflow-implementation
Plan and implement AI workflows such as RAG, agents, fine-tuning, and evaluation.
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ai-architecture
Design AI systems, integration patterns, data flows, and deployment architectures.
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governance
Apply governance, risk, review, and monitoring practices to AI implementation decisions.
Fast reference cards
Short answers to recurring implementation questions. These are the fast lane of the two-speed content system: useful now, and held to a lower evidence bar than the long-form guides above.
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When to add a reranker to a RAG pipeline
A reranker helps most when retrieval returns relevant passages but ranks them poorly — not when relevant passages are missing entirely.
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Reading context-window numbers honestly
A large context window is a capacity limit, not proof that a model uses long inputs effectively.
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Routing simple and hard queries to different models
A router that sends easy requests to a smaller model and hard ones to a stronger model can cut cost and latency without an across-the-board quality loss — when the routing signal is reliable.
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Structured output: JSON mode vs. function calling
JSON mode constrains output shape; function/tool calling additionally signals intent and arguments. They solve overlapping but distinct problems.
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Choosing an embedding model for retrieval
Embedding choice should be driven by your domain, language coverage, and update cost — not by a single leaderboard number.
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Prompt-injection basics for retrieval apps
Any system that feeds retrieved or user-supplied text into a model can carry instructions an attacker planted in that text.
All guides (16)
Every published guide, including the decision guides nested under each area.
- AI Architecture
- Benchmark Interpretation
- Choose A Model FOR Agents
- Choose AI Model FOR RAG
- Choose Managed API OR Self Hosted
- Compare AI Providers
- Design Enterprise RAG Workflow
- Evaluate AI Model Quality
- Fine Tuning vs RAG
- Fine Tuning vs RAG vs Long Context
- Governance
- Interpret AI Benchmarks
- Model Selection
- Provider Selection
- Structured Data FOR Technical Content
- Workflow Implementation
Continue your research
Use these connected ModelRefs sections to compare alternatives, inspect implementation paths, and review the evidence and governance boundaries relevant to AI Implementation Guides.