OpenAI · LLM API Modelactive

gpt-5.4-mini

gpt-5.4-mini costs $0.75 per 1M input tokens, $0.075 cached input and $4.50 per 1M output tokens. Batch API: $0.375 input, $2.25 output.

Updated September 21, 2026
Input / 1M
$0.75
Output / 1M
$4.50
Cached Input
$0.075
Context Window
272K
Standard Input
$0.75 / 1M
Base prompt input rate
Standard Output
$4.50 / 1M
Completion output rate
Prompt Caching -50%
$0.075 / 1M
Cached prompt context
Batch API -50%
$0.375 / 1M
Asynchronous 24h batch

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All rates listed in USD per 1 Million (1M) tokens unless noted

StandardBatchFlexFast mode
Pricing Metric / Parameter
Standard RATE
(per 1M)
Batch RATE
(per 1M)
Flex RATE
(per 1M)
Fast mode RATE
(per 1M)
Short context input$0.75$0.375$0.375$1.50
Short context cached input$0.075$0.0375$0.0375$0.15
Short context cache writes----
Short context output$4.50$2.25$2.25$9.00
Long context input----
Long context cached input----
Long context cache writes----
Long context output----

Source: OpenAI official pricing page, verified 2026-09-21. Prices in USD per 1M tokens.

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