GPT-5 Mini

OpenAI· released 7 Aug 2025

openai/gpt-5-mini

Input / 1M tokens: $0.25
Output / 1M tokens: $2

Context window400K tokens

Longest answer: 128K tokens

reads textreads imagereads filetool callingvisionreasoning

About

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....

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 400Kopenrouter.ai · 3 Oct 2026
Input price: $0.25 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $2 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 128,000 tokensopenrouter.ai · 3 Oct 2026
Inputs: text, image, fileopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

openrouter.ai/openai/gpt-5-mini· checked 3 Oct 2026