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Practical guides to AI APIs, model pricing, and building with Route Key.

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GPT Claude and Gemini API pricing comparison
4 min read

GPT vs Claude vs Gemini API Pricing

Learn how to compare GPT, Claude, and Gemini API pricing by input tokens, output tokens, cache behavior, context, and real task cost.

OpenAI-compatible API migration guide
4 min read

OpenAI-Compatible API Migration Guide

Move an existing OpenAI SDK integration to a compatible gateway with a staged base URL change, key isolation, testing, and rollback plan.