LLM API Integration Guides
Hands-on tutorials · Pricing analysis · Integration guides
AI API Pricing Comparison 2026: GPT vs Claude vs Gemini vs DeepSeek for Real Use Cases
A practical comparison of GPT, Claude, Gemini, and DeepSeek API pricing in 2026, focused on real cost structure, use cases, and how developers should choose models based on workload, quality needs, and budget.
What Is Function Calling? The Key Capability Behind AI Agents That Can Use APIs
Function calling is the key capability that lets AI agents use external tools and APIs. This guide explains how it works, when to use it, common implementation mistakes, and how to test it with APIBox.
How to Estimate LLM API Costs: Token Math, Pricing Tables, and Budgeting That Actually Works
LLM API costs are easy to underestimate. This guide explains token math, input/output pricing, multi-turn cost growth, retries, and model selection so developers can build realistic budgets and control spend.
APIBox Pricing and Token Groups
Understand APIBox pricing tiers, token group multipliers, and volume discounts. Learn how to save up to 85% on Claude, GPT, and DeepSeek official API rates.
LLM API Free Tier Guide 2026: How to Test OpenAI, Claude, Gemini, and DeepSeek Efficiently
A practical 2026 guide to testing LLM APIs with free tiers, covering OpenAI, Claude, Gemini, and DeepSeek, what free access is good for, and when to switch to a low-friction production setup.
CherryStudio Setup Guide (Desktop AI Client)
Step-by-step tutorial on installing CherryStudio on Windows, macOS, and Linux. Connect APIBox to switch seamlessly between Claude, GPT, and Gemini with zero VPN setup.
Claude Code Installation Guide (macOS/Linux)
Install and configure Claude Code in 5 minutes using the official npm package. Learn how to bypass regional restrictions by pointing the API to APIBox.
Claude Code Installation Guide (Windows)
Complete guide to installing Claude Code CLI on Windows via PowerShell and Git Bash. Configure APIBox endpoint to bypass regional blocks and prevent 429 rate limit issues.
Cline Extension Setup Guide (VSCode AI Assistant)
How to install the official Cline extension in VSCode and configure it with APIBox for high-performance AI coding.
OpenClaw Installation Guide
Learn how to install and configure OpenClaw, the open-source personal AI assistant platform. Connect it to APIBox for fast, unblocked LLM access.