GPT-5 Pro

OpenAI· released 6 Oct 2025

openai/gpt-5-pro

Input / 1M tokens: $15
Output / 1M tokens: $120

Context window400K tokens

Longest answer: 128K tokens

reads imagereads textreads filetool callingvisionreasoning

About

GPT-5 Pro is OpenAI’s most advanced model, offering major improvements in reasoning, code quality, and user experience. It is optimized for complex tasks that require step-by-step reasoning, instruction following, and...

Details

Lab: OpenAIopenrouter.ai · 3 Oct 2026
Context: 400Kopenrouter.ai · 3 Oct 2026
Input price: $15 / 1Mopenrouter.ai · 3 Oct 2026
Output price: $120 / 1Mopenrouter.ai · 3 Oct 2026
Max output: 128,000 tokensopenrouter.ai · 3 Oct 2026
Inputs: image, text, fileopenrouter.ai · 3 Oct 2026
Open weights: Noopenrouter.ai · 3 Oct 2026

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Sources

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