gpt-5.4-mini API pricing

OpenAI charges $0.75 per million input tokens and $4.5 per million output tokens for gpt-5.4-mini, and $0.075 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.003, or $0.0015 through the batch API.

Prices updated October 28, 2026
Input / 1M tokens
$0.75
Output / 1M tokens
$4.5
Cached input / 1M tokens
$0.075
Typical request
$0.003
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gpt-5.4-mini price per million tokens

Token typeStandardBatch API
Input$0.75$0.375
Cached input$0.075$0.0375
Output$4.5$2.25

gpt-5.4-mini supports a 272K-token context window, up to 128K output tokens, image input, tool calling and reasoning.

What gpt-5.4-mini costs per request

Request1 request1,000 requests1M requests
Short chat message (300 in, 200 out)$0.00112$1.13$1,125.00
Typical request (1K in, 500 out)$0.003$3.00$3,000.00
Long document summary (20K in, 1K out)$0.0195$19.50$19,500.00
Coding agent step (50K in, 2K out)$0.0465$46.50$46,500.00

At standard rates. A token is about 4 characters of English text, so 1,000 tokens is roughly 750 words.

Models with a similar price

ModelProviderInput / 1MCached input / 1MOutput / 1MTypical request
gemini-3.6-flashGoogle Gemini$0.75$0.075$3.75$0.00263
gemini-3.7-flashGoogle Gemini$0.75$0.075$3.75$0.00263
gemini-3.8-flashGoogle Gemini$0.75$0.075$3.75$0.00263
deepseek-v4-proDeepSeek$1.32$0.044$3.96$0.0033
mistral-large-4Mistral$1.36$0.14$4.18$0.00345
mistral-large-4-0Mistral$1.36$0.14$4.18$0.00345
gpt-6.1-terraOpenAI$1$0.05$5$0.0035
claude-haiku-4-5Anthropic$1$0.1$5$0.0035

Other OpenAI models

Source: OpenAI pricing.