AI API pricing, decoded
In-depth guides on what AI APIs really cost, how to cut your bill, and which model wins for your workload.
OpenAI Prompt Caching in 2026: When You'll Save 75% (And When You Won't)
OpenAI's prompt caching can cut your bill by 75% — or save you nothing. The difference is purely structural. Real math, real workloads, and the gotchas that destroy your cache hit rate.
Top 10 Cheapest AI APIs in 2026 (Ranked by Real Cost)
Independent cost ranking of 10 major LLMs in 2026. Per-call price comparison, where each model wins, and how caching can change the order entirely.
How to Calculate Token Cost: A Beginner's Guide
Everything you need to know about tokens — what they are, how they're billed, and how to estimate your AI API bill before you ship. With worked examples.
GPT-5.5 vs Claude Opus 4.7: Cost & Performance Comparison (2026)
Head-to-head between OpenAI's GPT-5.5 and Anthropic's Claude Opus 4.7. Pricing math, capability strengths, and which model wins for which workload.
OpenAI API Pricing Explained: Complete Guide for 2026
Deep dive into OpenAI's API pricing in 2026 — GPT-5.5, GPT-5 mini, o4-mini. Standard rates, cached input savings, Batch API discounts, and how to actually optimize your bill.
Claude API Pricing in 2026: How Much Does Anthropic Cost?
Complete breakdown of Claude Opus 4.7 and Claude Haiku 4.5 API pricing, including Anthropic's aggressive prompt caching that can cut bills by 90%.