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OpenRouter

Using GPT-5 on OpenRouter

Implementation guide · GPT-5 · OpenAI

Serverless

OpenRouter exposes GPT-5 through model ID openai/gpt-5. 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 — see the documentation for request format.
  3. 3
    You'll be billed $1.25/1M input, $10.00/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

See OpenRouter documentation for integration details.

Pricing on OpenRouter

TypePrice (per 1M)
Input tokens$1.25
Output tokens$10.00

Capabilities

VisionMultimodalReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt CachingBatch API

About GPT-5

OpenAI's previous intelligent reasoning model with configurable reasoning effort. Released August 2025. Supports minimal, low, medium, and high reasoning levels. Succeeded by GPT-5.1 and later models.

Full model details →

Model Specs

Released2025-08-07
Context400k
ArchitectureDecoder Only
Knowledge cutoff2024-09

More Models on OpenRouter

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

Also available on(3)

Replicate API$1.25/1MOpenAI API$1.25/1MVercel AI Gateway$1.25/1M
Compare all providers →

Provider

OpenRouter
OpenRouter

OpenRouter, Inc.

New York, NY, USA