OpenAI: GPT-5 Image Mini
GPT-5 Image Mini is an image generation model from OpenAI released on Oct 16, 2025. It reads text, images and files and writes text and images, with a 400K token context window.
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It costs $2.50 per million input tokens and $2 per million output tokens. Cached input bills at $0.25, 90% less than fresh input.
It supports prompt caching.
- Modalities
- In / out price
- $2.50 / $2 per 1M
- Context
- 400K
- Max output
- 128K
- Released
- Oct 16, 2025
- Knowledge cutoff
- n/a
- Tool calling
- Structured output
- Reasoning
- Prompt caching
- Open weights
- Free to use
GPT-5 Image Mini pricing
USD, as listed on Oct 15, 2026. Most bills are input heavy, so the cached input rate matters as much as the headline price.
| Input | $2.50 / 1M tokens | |
|---|---|---|
| Output | $2 / 1M tokens | |
| Cached input (read) | $0.25 / 1M tokens | 90% off input |
What GPT-5 Image Mini costs per month
Pick a workload close to yours or type your own volumes.
Supported request parameters
What you can set when you call GPT-5 Image Mini through an OpenAI compatible API.
- Reasoning
reasoning - Temperature
temperature
Alternatives to GPT-5 Image Mini
Models that take the same inputs, closest in price, cheaper ones first.
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by openaiApr 21, 2026$8/M input tokens$15/M output tokens2 providers
OpenAI: GPT-5 Image
Image400K contextGenerates images from text, images and files.
by openaiOct 14, 2025$10/M input tokens$10/M output tokens
- 131K context
Generates images from text, images, files and video. Served by 12 providers.
by googleFeb 26, 2026$0.50/M input tokens$60/M output tokens12 providers
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GPT-5 Image Mini questions
How much does the GPT-5 Image Mini API cost?
$2.50 per million input tokens and $2 per million output tokens, with cached input at $0.25. The estimator on this page turns that into a monthly bill for your own workload.
What is the context window of GPT-5 Image Mini?
400,000 tokens of input, and it can write up to 128,000 tokens in one reply. As a rough guide, a million tokens is around 750,000 English words.
Is GPT-5 Image Mini open source?
No. OpenAI serves it through an API only, so you cannot download the weights or host it yourself.
When was GPT-5 Image Mini released?
Oct 16, 2025.
Catalog data from models.dev (MIT licensed), refreshed daily, last on Oct 15, 2026. The summary is written from these facts.
Building on GPT-5 Image Mini?
I test your real tasks on it and the two closest alternatives, then ship the agent on whichever wins on cost and accuracy.
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