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GPT-5.4API
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system.
Prices update automatically — checked daily against provider list prices.
- $5.63 per 1M tokens, assuming 3 input for 1 output the convention used by Artificial Analysis
- cheaper than 19% of the 220 commercial models tracked here
- 72 of 94 OpenAI models tracked here, from cheapest
Benchmarks & performance
Independent benchmark scores for GPT-5.4, measured by Artificial Analysis. Higher is better. Measurement mode: Xhigh.
About this model
GPT-5.4 is a commercial AI model by OpenAI. The specifications below are tracked automatically: pricing is refreshed daily from public list prices, so the numbers on this page reflect the current cost of using the model through its API.
Frequently asked questions
What is GPT-5.4?
GPT-5.4 is an AI language model from OpenAI. It is a proprietary model, available through an API.
Is GPT-5.4 free?
GPT-5.4 is not free: it costs $2.5 per million input tokens and $15 per million output tokens. Open-weight alternatives can be self-hosted at no per-token cost.
What is GPT-5.4 good at?
Independent benchmarks from Artificial Analysis give it GPQA 92%, Humanity's Last Exam 43.7%, Long Context Reasoning 82%, IFBench 73.9%, τ²-Bench 87.1%, τ-Bench Banking 39.6%, Terminal-Bench 78.3%, Terminal-Bench Hard 57.6%.