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OpenAI: GPT-5 Image Mini API Pricing

OpenAI: GPT-5 Image Mini is an API model from openai. It costs $2.5 per 1M input tokens and $2 per 1M output tokens, with cached input at $0.25. Its context window is 400,000 tokens with up to 128,000 output tokens. A workload of 10M input + 2M output tokens costs about $29 per month.
Input
$2.5
per 1M tokens
Output
$2
per 1M tokens
Cached input
$0.25
per 1M tokens
Context window
400K
400,000 tokens
Blended (80/20)
$2.4
per 1M tokens

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by [GPT-5 Mini](https://openrouter.ai/openai/gpt-5-mini), with GPT Image 1 Mini for efficient image generation. This natively multimodal model features superior instruction following, text...

How much does OpenAI: GPT-5 Image Mini cost for a real workload?

At 10M input + 2M output tokens per month, OpenAI: GPT-5 Image Mini costs about $29 ($25 input + $4 output). Try your own volumes in the cost calculator.

What are cheaper alternatives to OpenAI: GPT-5 Image Mini?

Compare OpenAI: GPT-5 Image Mini with other models

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Frequently asked questions

How much does OpenAI: GPT-5 Image Mini cost?

OpenAI: GPT-5 Image Mini costs $2.5 per 1M input tokens and $2 per 1M output tokens (list price, snapshot October 21, 2026). At 10M input + 2M output tokens per month that is about $29.

What is the context window of OpenAI: GPT-5 Image Mini?

OpenAI: GPT-5 Image Mini has a context window of 400,000 tokens and can return up to 128,000 output tokens per response.

What are cheaper alternatives to OpenAI: GPT-5 Image Mini?

Cheaper models include Z.ai: GLM 5 ($1 in / $3.2 out), MoonshotAI: Kimi K2.6 ($0.65 in / $3.41 out), MoonshotAI: Kimi K2.7 Code ($0.6712 in / $3.35 out). See the full list on this page.

Is OpenAI: GPT-5 Image Mini free to use?

No. OpenAI: GPT-5 Image Mini is a paid model at $2.5 input / $2 output per 1M tokens. 20 free models are listed on the free models page.

Provider: openai · Model ID: openai/gpt-5-image-mini · Modality: text+image+file->text+image · Price snapshot October 21, 2026, refreshed daily. How we collect prices