Antimatter
OpenAI

GPT-5 Image Mini

openai/gpt-5-image-mini

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by GPT-5 Mini, with GPT Image 1 Mini for efficient image generation.

$2.75 in · $2.20 out per 1M tokens400k contextOct 16, 2025

about 0.2¢ a message

A typical message: about 500 tokens you send and 500 it writes.

up to $1.13 a picture

Chat with GPT-5 Image Mini
Call it from codeLock this price

Spec sheet

Published facts from the catalog, billed prices and what we measured here. Anything not measured says so.

Price, billed here

Input, per 1M tokens
$2.75provider $2.50
Output, per 1M tokens
$2.20provider $2.00
Cached input, per 1M
$0.275provider $0.25
Margin
+10%

Context and formats

Context window
400,000 tokens
Longest answer
128,000 tokens
Reads
text, images, and files
Makes
text and images
First listed
2025-10-16

Measured here, last 7 days

First token, median
not measured
Answered without error
not measured

Tools and JSON

Tool calling
not declared
JSON output
declaredthe provider's claim, not yet measured here

Price and latency history as JSON: GET /api/planet/history?id=openai/gpt-5-image-mini.

About

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by GPT-5 Mini, with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...

In OpenAI's words.

Try it here

This model makes images. Sign in to make one, billed to your balance.
The image appears here.

Measured here

Call it

Use one OpenAI compatible endpoint, this model's id and an am_live_ key from the dashboard. You can also try it in chat first with no key.

curl https://useantimatter.com/v1/chat/completions \
  -H "Authorization: Bearer $ANTIMATTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "openai/gpt-5-image-mini", "messages": [{"role": "user", "content": "Hello"}]}'

Everything else is in the docs.

Embed this

A badge showing this model's live price per million tokens, as billed here, for a README or a site. It links back to this page.

GPT-5 Image Mini price on Antimatter
<a href="https://useantimatter.com/planet/openai/gpt-5-image-mini"><img src="https://useantimatter.com/api/badge/price?id=openai%2Fgpt-5-image-mini" alt="GPT-5 Image Mini price on Antimatter" height="28"></a>

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