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May 11, 2026 Architecture

How to Build a Model Router: Use Cheap Models for 90% of Requests

Most AI API requests don't need a frontier model. Learn how to route simple tasks to cheap models and complex tasks to powerful ones — cutting your bill by 80%.

May 8, 2026 Reference

OpenAI vs Anthropic vs Google vs DeepSeek: Complete API Pricing Comparison 2026

Every model, every price, one page. Compare all 20+ models across four providers — with cached token rates, context windows, and cost-saving tips.

May 6, 2026 Roundup

The 5 Cheapest AI API Models in 2026

You don't need to spend $30 per million tokens to build with AI. These five models start at $0.10/M input — here's what they can do and when to use them.

May 3, 2026 Guide

How to Save 90% on AI API Costs with Prompt Caching

Prompt caching can reduce your input costs by up to 90%. Learn how it works across OpenAI, Anthropic, Google, and DeepSeek — with real pricing examples.

May 1, 2026 Comparison

GPT-5.5 vs Claude Opus 4.7 vs Gemini 3.1 Pro: 2026 Complete Comparison

Three frontier models, three different strengths. Pricing, benchmarks, hallucination rates, and real-world cost analysis for the top AI models of 2026.

April 29, 2026 Guide

What Are Tokens? A Complete Guide to AI API Pricing

Tokens are the fundamental unit of AI API billing. Learn how they work, how different providers count them, and how to estimate your costs before sending a single request.