37 resources

LLM guides, tutorials & concepts

Practical resources for building with multiple AI models. From your first API call to production-grade failover and cost optimization — everything you need to ship reliable AI features.

Where to start

New to multi-model?

Start with What is LLM routing? to understand why teams use multiple models. Then follow our multi-model setup guide.

Migrating from a provider?

See our migration guides for OpenAI, Anthropic, or OpenRouter. Migration typically takes under 15 minutes.

Optimizing costs?

Read how to reduce LLM API costs and explore BYOK (bring your own key) to use your existing provider keys through LLMWise routing.

How-to guides

Step-by-step tutorials for common integration, migration, and optimization tasks.

How to Compare LLM Models Side by Side
5 steps
How to Reduce LLM API Costs Without Sacrificing Quality
5 steps
How to Add LLM Failover to Your Application
5 steps
How to Switch LLM Providers Without Breaking Your Product
5 steps
How to Use Multiple AI Models in One Application
5 steps
How to Build AI Features Into Your Product
5 steps
How to Migrate from OpenAI API to Multi-Model
5 steps
How to Migrate from Anthropic API to Multi-Model
5 steps
How to Migrate from OpenRouter to LLMWise
5 steps
How to Build a Multi-Model AI Application
5 steps

SDK & integration guides

Language-specific quickstarts with install commands, code examples, and feature walkthroughs.

Python Integration
Access GPT-5.2, Claude Sonnet 4.5, Gemini 3 Flash, and more from Python using th
TypeScript Integration
Call GPT-5.2, Claude, Gemini, and more from TypeScript and Node.js using the off
Next.js Integration
Build AI-powered Next.js apps with LLMWise. Keep your API key server-side in a R
LangChain Integration
Connect LangChain to LLMWise with a lightweight wrapper. Run chains and agents a
cURL / REST Integration
Call multiple LLM models via a single REST endpoint using cURL or any HTTP clien
React Integration
Build streaming AI chat components in React with LLMWise. Use a backend proxy to
Migration Integration
Migrate from OpenAI to LLMWise in minutes. Keep your OpenAI-style messages, swit

Use cases by industry

How teams in different industries use multi-model APIs to solve real problems.

LLM API for SaaS Products
Add AI features to your SaaS with one API. Access GPT-5.2, Claude, Gemini, and m
AI API for Startups
Bootstrap AI features on a startup budget. 40 free trial credits, no subscriptio
LLM API for Chatbots and Conversational AI
Build conversational AI with nine models, streaming SSE, failover, and cost cont
LLM API for Customer Support Automation
Automate customer support with LLM-powered responses, smart routing, and 99.9% u
LLM API for Content Generation
Scale content production with multi-model generation, blending, and quality scor
LLM API for Code Generation
Build AI-powered developer tools with nine code-capable models, failover, and co
LLM API for Healthcare & Medical AI
Build clinical AI applications with multi-model routing, failover for uptime, an
LLM API for Fintech & Financial Services
Build financial AI applications with multi-model accuracy verification, BYOK com
LLM API for E-commerce & Retail
Scale product descriptions, personalize shopping experiences, and automate custo
LLM API for Education & EdTech
Build adaptive learning tools with multi-model AI. Route by subject, control per
LLM API for Legal Tech & Law Firms
Build legal AI tools with accuracy verification, confidential data controls, and
LLM API for Developer Tools & IDEs
Build code AI features with language-specific model routing, sub-300ms failover

AI concepts explained

Core concepts for understanding multi-model AI architectures.

What Is LLM Routing?
LLM routing is the process of automatically selecting which large language model
What Is Model Orchestration?
Model orchestration is the practice of coordinating multiple large language mode
What Is an LLM Gateway?
An LLM gateway is an intermediary service that provides a single, consistent API
What Is AI Failover?
AI failover is a reliability pattern that automatically redirects requests from
What Is Token Cost?
Token cost refers to the price charged by LLM providers for processing text thro
What Is a Context Window?
A context window (also called context length or context limit) defines the maxim
What Is a Multi-Model API?
A multi-model API is an abstraction layer that gives you access to models from O
What Is BYOK (Bring Your Own Key)?
Bring Your Own Key (BYOK) is a pattern where you provide your own API keys for L
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