Qwen3.8 Flash API: toman pricing and code
qwen/qwen3.8-flash
visiontoolsreasoningjsonYou are billed for the usage the request actually reported. Prices follow the market. Cached input: 4,642 toman / 1M.Pricing and top-ups
Qwen3.8 Flash example: reading an image into JSON
The example is picked from this model's own capabilities. Drop in your key and it runs as is.
# tip: a data URI works too — base64 the file and prefix it with data:image/jpeg;base64,
curl https://api.uttapen.ir/v1/chat/completions \
-H "Authorization: Bearer sk-up-…" \
-H "Content-Type: application/json" \
-d '{
"model": "qwen/qwen3.8-flash",
"messages": [{
"role": "user",
"content": [
{"type": "text", "text": "Return only the invoice number and the total, as JSON."},
{"type": "image_url", "image_url": {"url": "https://example.com/factor.jpg"}}
]
}]
}'import base64, json
from openai import OpenAI
client = OpenAI(base_url="https://api.uttapen.ir/v1", api_key="sk-up-…")
img = base64.b64encode(open("factor.jpg", "rb").read()).decode()
resp = client.chat.completions.create(
model="qwen/qwen3.8-flash",
messages=[{
"role": "user",
"content": [
{"type": "text", "text": "Return the invoice number, the date and the total as JSON."},
{"type": "image_url", "image_url": {"url": f"data:image/jpeg;base64,{img}"}},
],
}],
response_format={"type": "json_object"},
)
print(json.loads(resp.choices[0].message.content))import OpenAI from "openai";
import { readFileSync } from "node:fs";
const client = new OpenAI({ baseURL: "https://api.uttapen.ir/v1", apiKey: "sk-up-…" });
const img = readFileSync("factor.jpg").toString("base64");
const resp = await client.chat.completions.create({
model: "qwen/qwen3.8-flash",
messages: [{
role: "user",
content: [
{ type: "text", text: "Return the invoice number, the date and the total as JSON." },
{ type: "image_url", image_url: { url: `data:image/jpeg;base64,${img}` } },
],
}],
response_format: { type: "json_object" },
});
console.log(JSON.parse(resp.choices[0].message.content));What is Qwen3.8 Flash good for?
Qwen3.8 Flash comes from Qwen (Alibaba); in uttapen you reach it with the model id "qwen/qwen3.8-flash". It accepts up to 1,000,000 tokens of input per call, so a long document or several source files fit in a single request. A single response can run to 131,072 tokens. On price it sits in the "very cheap" band — cheaper than 87 and dearer than 319 of the other paid models in the catalogue.
What you get on top of text in, text out: it reads images directly, which makes it a real option for invoices, forms and screenshots; it supports tool calling, so it can invoke your own functions with valid arguments; it returns schema-valid JSON through response_format, ready to hand to your code; it has a reasoning mode that pays off on multi-step problems, maths and debugging. All of it works through the standard parameters of the official OpenAI SDK — no custom client, no wrapper. Keep in mind that reasoning tokens are output tokens and do appear on the bill.
Input runs at 43,519 toman per 1M tokens and output at 136,359 — output costs 3.1× input, so trimming the answer saves more than trimming the prompt. It supports cached input: repeated context is billed at 4,642 toman per 1M, which matters a lot if your system prompt is long. You are always charged for the usage the request actually reported, never for the estimate, and a failed request costs nothing.
The closest alternative with the same capabilities from a different provider is Gemma 3 27B: Qwen3.8 Flash works out roughly 1.2× more expensive, and its context window is larger. Both run on the same key and the same code, so trying the other one is a single string change.
To make the figure concrete: 100,000 toman of credit buys roughly 427 thousand-word requests on Qwen3.8 Flash, and every 1,000 toman is about 4,274 words of round trip. A job with one million input tokens and one million output tokens comes to 179,878 toman in total. Filling this model's 1,000,000-token window costs 43,519 toman on the input side alone, which is the real reason to keep conversation history short.
Its nearest relative in the catalogue is "qwen/qwen3.5-flash-02-23", and choosing between those two is where most people hesitate. On a thousand-word request this variant works out 1.9× dearer (234 against 123 toman). Maximum answer length differs as well: 131,072 against 65,536 tokens. On parameters, this one takes logprobs, top_logprobs.
Qwen (Alibaba) has 53 models in our catalogue; the cheapest is Qwen3.7 Flash at 60 toman per thousand words and the dearest Qwen3.8 Max (0902) at 3,017. Among the less common parameters it accepts logprobs, top_k, top_logprobs — all through the standard request body. By context size the nearest option from another provider is Nova 2 Lite at 1,000,000 tokens.
Where it makes sense: high-volume work such as classification, tagging and bulk summarising, logic puzzles and code review, pulling text and fields out of images, agents that reach out to APIs and databases, extracting data against a fixed schema, analysing a long document or codebase in one request.
Qwen3.8 Flash is a multimodal reasoning model from Alibaba. It is suited for coding assistance, agentic workflows, visual understanding, document and codebase analysis, desktop interaction, chart analysis, and long-video analysis.
Three real jobs, priced on this model
Each figure is derived from the prices above and moves when they do.
| Job | Tokens | Cost |
|---|---|---|
| One chat turn with a medium history | 1,500 in + 400 out | 120 toman |
| Summarising a ten-page document | 4,000 in + 600 out | 256 toman |
| Classifying a thousand short rows | 120,000 in + 20,000 out | 7,949 toman |
Frequently asked
- How do I call Qwen3.8 Flash from Iran?
- Sign up with your mobile number, top the wallet up in toman, create an API key, then in the official OpenAI SDK point base_url at https://api.uttapen.ir/v1 and set model to "qwen/qwen3.8-flash". Nothing else in your code changes.
- What does Qwen3.8 Flash cost in toman?
- 43,519 toman per 1M input tokens and 136,359 toman per 1M output tokens; a 1,000-word request is around 234 toman. You pay for the usage that request actually reported, and a failed request costs nothing.
- How much input does Qwen3.8 Flash take?
- Up to 1,000,000 tokens per request, roughly 750k words. A single answer can reach 131,072 tokens.
- Does Qwen3.8 Flash support streaming and tool calling?
- Streaming (stream=true) works on every model here. This one supports tool calling in the standard OpenAI shape. Image input is accepted through image_url, as a data URI or a public URL. Structured output through response_format works too.