gpt-5.4
A OpenAI model. Every figure below was read off OpenAI's own pricing page and stamped with the date it was read — last pass 2026-08-04. Nothing here is estimated.
| Input / 1M tokens | $2.5 |
| Output / 1M tokens | $15 |
Price is the easy half. What it costs you also depends on how fast the first token arrives and what survives concurrency — that part is measured. See every OpenAI model on its provider page.