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CostPerPrompt

GPT-5 Image Mini API Pricing

OpenAI · context window 400K · prices updated 2026-08-02

Input per 1M tokens
$2.50
Output per 1M tokens
$2.00
Cached input per 1M
$0.25
90% cheaper than fresh input

What real workloads cost on GPT-5 Image Mini

Workload Per request Per month
1K short requests/day (500 in / 150 out) $0.0015 $46.50
Support chatbot, 500 convs/day (~5K in / 1.4K out per conv) $0.0153 $230
Document pipeline, 10K docs/day (3K in / 500 out) $0.0085 $2550

Model your exact traffic in the API cost calculator — it preloads GPT-5 Image Mini with caching and batch options.

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Frequently asked questions

How much does the GPT-5 Image Mini API cost?

GPT-5 Image Mini costs $2.50 per million input tokens and $2.00 per million output tokens, with cached input at $0.25 per million (90% cheaper). In practice, a typical short request (500 tokens in, 150 out) costs about $0.0015.

What does 1,000 requests per day cost on GPT-5 Image Mini?

At 500 input + 150 output tokens per request, 1,000 requests/day costs about $46.50 per month. Heavier workloads scale linearly — use our API cost calculator to model your exact traffic.

How can I reduce GPT-5 Image Mini costs?

Three levers, in order of impact: (1) route routine requests to a cheaper tier and keep GPT-5 Image Mini for hard cases; (2) enable prompt caching — cached input is 90% cheaper, which typically halves chatbot bills; (3) use the batch API for non-urgent jobs at a ~50% discount.

Is GPT-5 Image Mini worth the price?

It depends on task difficulty. Flagship models earn their premium on complex reasoning, coding, and high-stakes output; mini/flash tiers handle classification, extraction and routine chat at 10–30× lower cost. Benchmark a sample of your real workload on both before committing.