GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
| Provider | openai |
|---|---|
| Input price | $0.250 / 1M tokens |
| Output price | $2.00 / 1M tokens |
| Context window | 400k tokens |
| Max output | 128k tokens |
| Modalities | text, image, file |
| Model ID | openai/gpt-5-mini |
A 1,000-token prompt with a 500-token answer on OpenAI: GPT-5 Mini costs roughly $0.00125. Use the OpenRouter cost calculator to price your own prompt across 400+ models, or the token counter to measure prompt length first.
PromNest stores your prompt library and lets you run any prompt on OpenAI: GPT-5 Mini with your own OpenRouter key — including side-by-side comparison with other models. Browse 1,000+ ready-made prompt templates to start.