OpenAI · image model

GPT-5 Image Mini

OpenAI: GPT-5 Image Mini is an image model on the Overblast AI Gateway. Call it as openai/gpt-5-image-mini with one Overblast API key, paid from your AI credits.

Prices are final: what a call costs in AI credits, in US dollars. As of 2 October 2026, from the live catalogue.

Price

OpenAI: GPT-5 Image Mini: price
Price$16.00 / M tokens
Image$5.00 / M tokens

What it does

OpenAI: GPT-5 Image Mini: what it does
DoesMakes a picture from a prompt, Edits pictures you send
Pictures in0 to 16
Pictures per call1 to 10
Aspect ratios1:1, 3:2, 2:3, auto
Backgroundauto, transparent, opaque
Qualityauto, low, medium, high
Files inTakes a document as well as pictures

Where it runs

OpenAI: GPT-5 Image Mini: where it runs
RegionsRuns globally; it cannot be pinned to the EU or the US yet
Zero data retentionNot applicable: image calls cannot carry the requirement
EndpointPOST /v1/images

Call it

curl https://ai.overblast.app/v1/images \
  -H "Authorization: Bearer $OVERBLAST_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5-image-mini",
    "prompt": "A lighthouse at dawn, watercolour"
  }'

All image models and their prices · How the AI Gateway works