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OpenAI: GPT-5 Image

Source description (English)

GPT-5 Image combines OpenAI's GPT-5 model with state-of-the-art image generation capabilities. It offers major improvements in reasoning, code quality, and user experience while incorporating GPT Image 1's superior instruction following,...

Overview

Model specifications

Context
400,000 tokens
Maximum output
128,000 tokens
Architecture
text+image+file->text+image
Tokenizer
GPT
Knowledge cutoff
Not provided
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$10
per 1M tokens
Output
$10
per 1M tokens
Cache read
$1.25
per 1M tokens
Image output
$40
per 1M tokens
Web search
$10
per 1,000 calls
API

Model configuration

Reasoning

Reasoning required
Yes
Default parameters
No
API

Quick start

Set OPENROUTER_API_KEY locally. Python requires requests; JavaScript runs in Node.js. Keep the key on the server.

API documentation

curl --fail-with-body https://openrouter.ai/api/v1/images \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"openai/gpt-5-image","prompt":"A sunlit mountain landscape"}'
Capabilities

Input → Output

Input
imagetextfile
Output
imagetext
Reasoning

No

API

Supported API parameters

include_reasoninglogprobsmax_tokensreasoningresponse_formatseedstructured_outputstemperaturetop_logprobstop_pverbosity
Available providers

1 Provider

Checked: October 2, 2026

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

OpenAI

Not provided
Context
400K
Maximum output
128K
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