OpenAIGPT-5 Chat API pricing

GPT-5 Chat was retired on . Its last price was $1.25 per 1M input tokens and $10.00 per 1M output tokens.

Last price

Rates in effect since (launch price). Every price links to its source.

Input
$1.25
Output
$10.00
Blended 3:1
$3.4375
GPT-5 Chat last rates per 1M tokens
RatePer 1M tokens
Input$1.25
Output$10.00

Launch price

GPT-5 Chat launched at this price on .

Input
$1.25
Output
$10.00
Blended 3:1
$3.4375

Every price event

1 verified event, newest first. No price moves. Documented since .

  1. Launch price ·

    Rates from August 7, 2025
    RatePer 1M tokens
    Input$1.25
    Output$10.00

    Cached input is left out: the launch post doesn't give it. $0.125 cached input is first listed on an official page on 2025-12-11.

Gaps in this history

Cached input not documented before the platform.openai.com/docs/pricing capture of 2025-12-11. Batch: the model page lists the Batch endpoint as 'Not supported'.

API ids

Checked .