Developers integrating with Large Language Models (LLMs) often encounter API errors, with four status codes accounting for most issues. A 401 error indicates an authentication problem, meaning the API key is invalid, expired, or malformed, though sometimes it's a CORS or header format issue. A 402 error signifies a billing problem, where the API key is valid but the account lacks funds or has hit a spending limit. A 403 error means the API key is valid, but the user lacks permission to access the requested model or feature, or a firewall is blocking the request. Understanding these distinctions is crucial to avoid wasting time on incorrect troubleshooting steps like rotating API keys when the issue lies elsewhere. AI
IMPACT Helps developers troubleshoot common LLM API integration issues, saving time and reducing frustration.
RANK_REASON The item explains common API error codes for LLM integration, which is a technical utility for developers.
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