Models / GPT Image 1.5

GPT Image 1.5 API on RelayRouter

gpt-image-1.5 is a image generation model from OpenAI. On RelayRouter it is served by 4 public groups, billed per token from a prepaid balance with no platform fee, through the same base URL as every other model: https://relayrouter.io.

Facts

Model id	gpt-image-1.5
Provider	OpenAI
Modality	image generation
Protocols	OpenAI Chat Completions API (/v1/chat/completions)
Billing	Per token, prepaid balance, failed requests not billed, no platform fee
Payment	Credit or debit card via Stripe

Groups and rates

Group	Protocol	Rate
GPT	OpenAI Chat Completions API	settlement rate ¥0.6 per $1 of standard usage, about 91% below the ¥6.8/$ market reference
Codex Fast	OpenAI Chat Completions API	settlement rate ¥0.75 per $1 of standard usage, about 89% below the ¥6.8/$ market reference
GPT Azure	OpenAI Chat Completions API	settlement rate ¥2.38 per $1 of standard usage, about 65% below the ¥6.8/$ market reference
OpenAI Stable	OpenAI Chat Completions API	settlement rate ¥2.8 per $1 of standard usage, about 59% below the ¥6.8/$ market reference

Rates are indicative and settle from your prepaid balance; the rate shown in the console at request time is authoritative. Market reference ¥6.8 per $1. Full table on the models page and pricing.

How to call it

Create a key in the console for a group that lists gpt-image-1.5, then call it with that group's native protocol. The quick start covers all three protocols.

index.tstypescript

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.RELAYROUTER_API_KEY,
  baseURL: "https://relayrouter.io/v1",
});

const res = await client.chat.completions.create({
  model: "gpt-image-1.5",
  messages: [{ role: "user", content: "Hello!" }],
});
console.log(res.choices[0].message.content);

Questions

How much does gpt-image-1.5 cost on RelayRouter?

The cheapest public group serving gpt-image-1.5 is "GPT": settlement rate ¥0.6 per $1 of standard usage, about 91% below the ¥6.8/$ market reference. Usage is deducted from your prepaid balance and the exact rate at request time is shown in the console.

Which API protocol do I use for gpt-image-1.5?

Use the native protocol of the group you pick: OpenAI Chat Completions API at /v1/chat/completions. The base URL is always https://relayrouter.io and the key goes in the usual header for that SDK.

Are failed requests billed?

No. Only successfully completed calls are billed, and there is no platform fee on top of token usage.

Guides