openai
OpenAI: GPT-5 Image Mini API Pricing
OpenAI: GPT-5 Image Mini costs $2.50 per 1M input tokens and $2.00 per 1M output tokens (cache reads: $0.250). Context window: 400K. Prices verified 2026-08-23 Β· source
Input / 1M tokens
$2.50
Output / 1M tokens
$2.00
Context window
400K
Max output
128K
What would OpenAI: GPT-5 Image Mini cost you per month?
| Workload | Requests/mo | Avg tokens (in/out) | Est. monthly cost |
|---|---|---|---|
| Light chatbot | 10,000 | 800 / 400 | $28.00 |
| Coding agent | 5,000 | 8,000 / 2,000 | $120.00 |
| RAG pipeline | 30,000 | 4,000 / 500 | $330.00 |
| Doc summarizer | 2,000 | 20,000 / 1,000 | $104.00 |
Estimates use list prices without prompt caching. Caching can cut input cost by up to 90% on repeated context.
About OpenAI: GPT-5 Image Mini
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...
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Official resources
- OpenAI: GPT-5 Image Mini on OpenRouter β live endpoint, pricing source of record.
- Get an OpenRouter API key β β one key, every model including Mini. Free credits on signup.
- Shred your current bill β paste a CSV and see if switching saves money.