GPT-5.5 - AI Model API and Pricing

Paying for fewer rewrites

Its listed strengths are the best brief adherence and a stable brand tone. Say your brief has a word limit, banned phrases, a required structure and a verbatim legal line. GPT-5.5 is the model most likely to respect all of it on the first pass.

The value is in editing time saved. A cheaper model may need two rounds of fixes before a client sees the draft. In that case, the higher rate can still come out ahead.

Tools and presets

It runs in AI Article Generator, which has presets for SEO article, Blog post and Product description. Ad copy, Video script and Newsletter are there too. AI Ebook Generator also runs it for longer books.

Write the brief like a checklist: "Write a Video script of about 90 seconds for a bank's savings app. Audience: first-time savers. Must include the line 'Capital at risk' once and never use the word 'guaranteed'. End with a single call to action to download." For an SEO article, list the headings you require and the questions it must answer.

What it costs

An 800-word blog post rounds up to 1k words and costs 47 credits, about $0.50 at the best pack. A 2,000-word article costs 94 credits, about $1. It ranks 10th of 10 text models on price. That is the top of a range that starts at 1 credit.

Cheaper models that may be enough

Claude Sonnet 5 at 16 credits has the best style in longer forms and holds a brand voice. Editorial articles and homepage copy are often fine there. Gemini 2.5 Pro, also 16 credits, is the pick when copy must be built from long source documents.

For captions, headlines and ad variants, Claude Haiku 4.5 at 8 credits is usually all you need. A sensible routine is to draft and explore on a cheaper model. Then send the final brief to GPT-5.5 when the deliverable is client-facing.

Where to actually run it

GPT-5.5 API

curl -X POST https://ugesi.com/api/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5-5",
    "prompt": "a product shot on white marble"
  }'

<?php
$ch = curl_init('https://ugesi.com/api/generate');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer YOUR_API_KEY',
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS => json_encode([
        'model' => 'gpt-5-5',
        'prompt' => 'a product shot on white marble',
    ]),
]);
$response = json_decode(curl_exec($ch), true);
curl_close($ch);
print_r($response);

type GenerateRequest = {
  model: string;
  prompt: string;
};
type GenerateResponse = {
  job_id: number;
  job_token: string;
  credits_held: number;
  status: "queued" | "succeeded";
  output_text?: string;
};

const body: GenerateRequest = {
  model: "gpt-5-5",
  prompt: "a product shot on white marble",
};

const resp = await fetch("https://ugesi.com/api/generate", {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${process.env.UGESI_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify(body),
});
if (!resp.ok) throw new Error(`HTTP ${resp.status}`);
const job = (await resp.json()) as GenerateResponse;
console.log(job.job_id, job.status);

import requests

resp = requests.post(
    "https://ugesi.com/api/generate",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    json={
        "model": "gpt-5-5",
        "prompt": "a product shot on white marble",
    },
    timeout=60,
)
resp.raise_for_status()
print(resp.json())

{
  "model": "gpt-5-5",
  "prompt": "a product shot on white marble"
}

The API comes with every credit pack, from Lite to Enterprise, and uses the same balance as the website. API documentation and access →

License and terms of use

Outputs made with paid credits can be used commercially. The maker's own rules for GPT-5.5 also apply (OpenAI Usage Policies). The full rules are in our Terms of service.

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