OpenAI

gpt-5.5-pro

Name: gpt-5.5-pro
Author: OpenAI

Version of GPT-5.5 that produces smarter and more precise responses.

Starting at

Input

$30.00/ 1M

Output

$180.00/ 1M

Open dashboard

Channel

Each channel is compared at its lowest input-price tier; output breaks ties. A dash means /api/pricing does not provide that rate. Selecting a channel updates the endpoints and call example below.

ChannelUSD per 1M tokensInputOutputCache readCache write

openai/gpt-5.5-pro

Input

$30.00

Output

$180.00

Cache read

Cache write

Endpoints

POST/v1/responsesResponses

Call it

Using openai/gpt-5.5-pro

1from openai import OpenAI23client = OpenAI(4    base_url="https://www.realrelay.ai/v1",5    api_key="sk-***",6)78response = client.responses.create(9    model="openai/gpt-5.5-pro",10    input="Hello",11    max_output_tokens=1024,12)1314print(response.output_text)

1import OpenAI from "openai";23const client = new OpenAI({4  baseURL: "https://www.realrelay.ai/v1",5  apiKey: process.env.REALRELAY_API_KEY,6});78const response = await client.responses.create({9  model: "openai/gpt-5.5-pro",10  input: "Hello",11  max_output_tokens: 1024,12});1314console.log(response.output_text);

1curl https://www.realrelay.ai/v1/responses \2  -H "Authorization: Bearer $REALRELAY_API_KEY" \3  -H "Content-Type: application/json" \4  -d '{5    "model": "openai/gpt-5.5-pro",6    "input": "Hello",7    "max_output_tokens": 10248  }'

Prices and availability as published on Oct 4, 2026.

Capabilities

Code interpreterFile searchHosted shellImage generationReasoningStructured outputTool useVisionWeb search

Input

TextImage

Output

Text