GPT-5.4 is priced at $2.50/1M input and $15/1M output tokens while GPT-5.4 Pro is $30/1M input and $180/1M output tokens, more than GPT-5.2 and GPT-5.2 Pro

The AI updates aren't slowing down. Literally two days after OpenAI launched a new underlying AI model for ChatGPT called GPT-5.3 Instant, the company has unveiled another, even more massive upgr...