gpt-5-mini API pricing

OpenAI charges $0.25 per million input tokens and $2 per million output tokens for gpt-5-mini, and $0.025 per million cached input tokens. A typical request of 1,000 input and 500 output tokens costs $0.00125, or $0.000625 through the batch API.

Prices updated October 28, 2026
Input / 1M tokens
$0.25
Output / 1M tokens
$2
Cached input / 1M tokens
$0.025
Typical request
$0.00125
Calculate the cost of your prompt →

gpt-5-mini price per million tokens

Token typeStandardBatch API
Input$0.25$0.125
Cached input$0.025$0.0125
Output$2$1

gpt-5-mini supports a 272K-token context window, up to 128K output tokens, image input, tool calling and reasoning.

What gpt-5-mini costs per request

Request1 request1,000 requests1M requests
Short chat message (300 in, 200 out)$0.000475$0.48$475.00
Typical request (1K in, 500 out)$0.00125$1.25$1,250.00
Long document summary (20K in, 1K out)$0.007$7.00$7,000.00
Coding agent step (50K in, 2K out)$0.0165$16.50$16,500.00

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
deepseek-v4-1-flash-1017Mistral$0.3$0.007$1.2$0.0009
gemini-3.1-flash-liteGoogle Gemini$0.25$0.025$1.5$0.001
gpt-4.1-miniOpenAI$0.4$0.1$1.6$0.0012
mistral-large-3Mistral$0.5$0.05$1.5$0.00125
mistral-large-2512Mistral$0.5$0.05$1.5$0.00125
gemini-2.5-flashGoogle Gemini$0.3$0.03$2.5$0.00155
gemini-3.5-flash-liteGoogle Gemini$0.3$0.03$2.5$0.00155
deepseek-r1DeepSeek$0.55$0.14$2.19$0.00164

Other OpenAI models

Source: OpenAI pricing.