Qwen3 Coder - AI Model API and Pricing

Where it earns its rate

Qwen3 Coder comes from Alibaba's Qwen family and is tuned toward code and technical language. On Ugesi it runs as a writer. The output you get is prose and examples, not a running program. It does best when you hand it a skeleton. Include headings, the steps a reader must follow and the error messages they will hit. Give it that outline and it fills each part in order without wandering.

It is the wrong pick for persuasive copy. Its own listed limit is that it is not for marketing copy. In practice that shows up as flat, literal sentences in an ad or a landing page hero.

Which preset to open in AI Article Generator

Open the AI Article Generator and choose Blog post for a tutorial aimed at developers. Pick SEO article when the guide must rank for a how-to search. Newsletter works for a changelog digest. Skip Ad copy and Product description with this model; another writer will do those better.

Example prompt: "Write a step-by-step guide to connecting a webhook to a CRM. Sections: prerequisites, create the endpoint, verify the signature, retry logic, troubleshooting. Use short numbered steps and one code block per section." A second: "Rewrite these release notes as a migration guide. Keep every breaking change, add a before and after snippet for each."

Controlling length and cost

The engine reads only your prompt, so state the length you want rather than hoping it stops. Budget a typical 800-word tutorial as 8 credits, since it rounds up to 1k words. That is about $0.09 at the best pack. A 2,000-word article costs 16 credits, about $0.17. Among 10 text models priced per 1k words, it sits at rank 6 from the cheapest. That group runs from a floor of 1 to a ceiling of 47 credits.

If a draft comes back too long, cut the outline instead of rerunning with the same one. Fewer sections give a tighter page and a smaller bill.

When another writer is the better buy

DeepSeek V4 costs 2 credits per 1k words and handles long analytical articles with a coherent argument. Its style also reads technical, so try it first if budget matters more than strict structure. Gemini 3 Flash at 5 credits suits high-volume short descriptions. Claude Haiku 4.5 costs the same 8 credits but writes more natural sentences. That makes it the swap for headlines, captions and anything a customer reads before a developer does.

Where to actually run it

Qwen3 Coder API

curl -X POST https://ugesi.com/api/generate \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen3-coder",
    "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' => 'qwen3-coder',
        '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: "qwen3-coder",
  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": "qwen3-coder",
        "prompt": "a product shot on white marble",
    },
    timeout=60,
)
resp.raise_for_status()
print(resp.json())

{
  "model": "qwen3-coder",
  "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

Qwen3 Coder is released under the Apache License 2.0, a permissive license that allows commercial use. The full rules are in our Terms of service.

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