Billing & Credits Guide

OpenAI API

Advanced AI models for text, images, audio, and more. Powering the AI revolution.

What We Track

Validation

API key validity status

Models

Available models count

Organization

Organization ID

Rate Limits

RPM (requests) & TPM (tokens)

Secret Keysk-...

Standard API key, starts with sk-

Plan	Price	Features
Free (Prepaid)	$5 credits	$5 initial credits Limited rate limits Access to most models Community support
Pay-as-you-go	From $0.075/1M input tokens	Higher rate limits All models Priority support Organization management

GPT-4.5

Latest flagship model

GPT-4o

Multimodal flagship

GPT-4o mini

Fast & affordable

Advanced reasoning

o4-mini

Fast reasoning