POST

/v1/estimate · openai/gpt-5.1

model GPT-5.1priced per tokensource pricing page ↗

field	recorded source
pricing	Source linked above. Source trace `62f91a55d481d9660bb9f28d2b2b4db423644032660c1c45a1becd873c961a36`

input_tokens number · usage	$1.25 / 1M
output_tokens number · usage	$10 / 1M
cache_read_tokens number · usage
quote	$11.25 — input_tokens 1000000 · output_tokens 1000000 · cache_read_tokens 0