Openai400,000 Context

OpenAI: GPT-5.3-Codex Cost Estimator

Calculate exact API costs for Openai's OpenAI: GPT-5.3-Codex model. Estimate your monthly bill based on $1.7500 per 1M input tokens and $14.0000 per 1M output tokens.

Interactive Cost Estimator

Estimated Monthly Users1,000

Average Input Tokens / User2,000

Average Output Tokens / User500

Estimated Monthly Cost$10.50

Based on 1.75/1M input & 14/1M output tokens