GPT-5.4 Pro sits in the frontier tier — built for high-capability reasoning, tool use, and long-form output where capability outweighs cost. Available via OpenAI. 1.1M-token context. Frontier-tier pricing.
GPT-5.4 Pro is a multimodal AI model from OpenAI. It costs $30.000 per million input tokens and $180.000 per million output tokens (blended $75.000/M), with a 1.1M-token context window.
GPT-5.4 Pro costs $30.000 per million input tokens and $180.000 per million output tokens, for a blended reference rate of $75.000 per million tokens.
GPT-5.4 Pro supports up to 1.1M tokens of context (1,050,000 tokens).
GPT-5.4 Pro is well suited to Strong general reasoning, Tool use & function calling and Long-form writing.
GPT-5.4 Pro is developed and served by OpenAI.