LLM Reference
OpenRouter

Using GPT-5 Pro on OpenRouter

Implementation guide · GPT-5 · OpenAI

Serverless

OpenRouter exposes GPT-5 Pro through model ID openai/gpt-5-pro. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-06-15. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at OpenRouter and generate an API key.
  2. 2
    Use the OpenRouter SDK or REST API to call openai/gpt-5-pro — see the documentation for request format.
  3. 3
    You'll be billed $15.00/1M input, $120.00/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$15.00
Output tokens$120.00
Image input$1.00

Capabilities

VisionMultimodalJSON / Tool useStructured OutputsCode Execution

About GPT-5 Pro

GPT-5 Pro is OpenAI's most advanced GPT-5 tier, offering major improvements in reasoning, code quality, and user experience for enterprise and power-user applications at 400K context.

Full model details →

Model Specs

Released2025-10-01
Context400k
ArchitectureDecoder Only
Knowledge cutoff2024-09

More Models on OpenRouter

GPT-5.2GPT-5GPT-5 MiniGPT-5 NanoGPT-5 ChatGPT-5 Codex
All models on OpenRouter →

Also available on(2)

Vercel AI Gateway$15.00/1MOpenAI API$15.00/1M
Compare all providers →

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA