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OpenAI: GPT-5 Image Mini

openai/gpt-5-image-mini

OpenAI: GPT-5 Image Mini is a 400,000-token model served on Composite at $3.13 per million tokens in and $2.50 per million tokens out.

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Specifications

Specifications and pricing as served by Composite
Model IDopenai/gpt-5-image-mini
Providercv11
Context window400,000 tokens
Acceptsfile, image, text
Returnsimage, text
Input price$3.13 per million tokens
Output price$2.50 per million tokens
Prompt cachingSupported — cached input is billed at the provider's cache rate, on credits and plans alike
Image output$0.000010 per image
Web search$0.0125 per result
ThinkingAlways on for this model
ModeratedYes - by the provider
Cost on a monthly planAbout 22 plan credits per typical call (8k in, 1k out)
Routing endpoints2 (base plus 1 routing variant)

Measured on Composite

This model has not carried enough traffic on Composite yet to publish a success rate, a latency figure or a traffic rank. The numbers appear here once it has.

Routing variants

The same model behind 1 alternative endpoint. Call the id directly to pin a route; the base id above picks for you.

RouteModel IDProviderPrice
cheapThink openai/gpt-5-image-mini:cheapThink cv11 $3.13 per million tokens input · $2.50 per million tokens output

Pricing

$3.13 per million tokens input · $2.50 per million tokens output

Credits pay the provider’s price plus 25%; cache hits cost less.

On a monthly plan, a typical call (8k tokens in, 1k out) uses about 22 plan credits, at the provider's own price.

Provider

cv11

Roleplay fit

This is an OpenAI model, a dependable baseline with broad instruction-following and consistent formatting across long conversations.

Context behavior

With a 400,000-token context window, it can hold a long-running roleplay or a full lorebook in memory without losing earlier plot details, so it suits multi-session campaigns and character cards with heavy backstory.

Cost for regular use

It is priced for quality-sensitive scenes, where writing quality and instruction-following matter more than minimizing per-message cost.

From the provider

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...

Supplied by cv11, not written by Composite.