Blog

AI Infrastructure & Engineering

Practical guides on LLM routing, RAG, batch inference, and building production AI apps without managing infrastructure.

How to Build a Multi-Model AI App Without LangChain

LangChain is a framework you host and maintain. Here's how to build a multi-model AI app — routing across Claude, GPT, and Llama — with a managed REST API instead.

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Using Neureus with Next.js App Router

A complete guide to integrating Neureus AI into a Next.js 15 App Router project — streaming chat, RAG, and server actions. Production patterns, not toy examples.

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Cut Your OpenAI Bill 40% with Batch Inference

OpenAI's Batch API charges 50% of realtime rates. Neureus adds another 40% off on top. Here's how to identify workloads that are safe to batch and implement it in under 30 minutes.

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Neureus vs Direct OpenAI SDK — When to Switch

The direct OpenAI SDK is the right default. Here's the exact moment it stops being enough — and what you get when you switch to Neureus.

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How to Build a Customer Support Bot in 100 Lines

A complete customer support bot using Neureus: ingest your docs, add semantic search, stream responses, and handle escalation — under 100 lines of TypeScript.

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RAG in 50 Lines — Build a Document Q&A App

Retrieval-Augmented Generation doesn't require a vector database, embedding service, or LLM orchestration library. Here's a complete RAG app in 50 lines of TypeScript.

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Why We Priced 10% Below OpenRouter — And How We Sustain It

Neureus tokens always cost 10% less than OpenRouter. Here's the mechanism that makes it possible: a 4-pass prompt preprocessor that cuts token count before provider billing.

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The AI Stack That's Costing You $700/Month (And What to Replace It With)

Most teams running AI in production are paying for 5 separate services that could be one API call. Here's the breakdown of where the money goes and how to cut it by 80%.

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Composable Intelligence Patterns: Beyond Single-Model Prompts

Single LLM calls solve simple problems. Complex workflows need patterns: ensemble voting, step-back reasoning, expert routing, and more. Here's how to implement them as API calls.

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MCP Server vs REST API: When to Use Each for AI Integrations

Model Context Protocol (MCP) and REST APIs solve different problems. Here's when to expose your product via MCP, when to stick with REST, and how Neureus supports both.

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