How much does Qwen3.8 Max Prime cost?

Qwen3.8 Max Prime costs $4 per million input tokens and $12 per million output tokens through the API. For example, 1,000 chat replies of about 500 tokens in and 300 out cost around $5.60.

What is the context window of Qwen3.8 Max Prime?

Qwen3.8 Max Prime can read up to 1,000,000 tokens in one request, about 1,875 pages of text. It can write up to 131,072 tokens in a single answer.

Is Qwen3.8 Max Prime open source?

No. Qwen3.8 Max Prime is a closed model: its weights are not published, so you use it through Alibaba Qwen’s own apps and API, or through cloud providers.

Who makes Qwen3.8 Max Prime?

Qwen3.8 Max Prime is made by Alibaba Qwen. It became available through the API on September 23, 2026.

Can Qwen3.8 Max Prime read images?

Yes. Besides text, it accepts images and video as input.

What are the alternatives to Qwen3.8 Max Prime?

Models with a similar price from other companies include Ember-1, Aion 3.5 and Claude Opus 5.5. You can compare them side by side on this page.

Qwen3.8 Max Prime

Name: Qwen3.8 Max Prime
Price: 4 USD
Author: Alibaba Qwen

Alibaba Qwenqwen/qwen3.8-max-primeProviders: 1

Inputi$4per 1M tokens

Outputi$12per 1M tokens

Contexti1M1,000,000 tokens

ReleasedSep 23, 2026Max output: 128K

About this model

Qwen3.8 Max Prime is an AI model from Alibaba Qwen, made available through the API on September 23, 2026. It can read up to 1,000,000 tokens in one request, roughly 1,875 pages of text, and write up to 131,072 tokens in a single answer. Besides text, it accepts images and video as input.

Through the API it costs $4 per million input tokens and $12 per million output tokens. It is among the more expensive models we track, a price usually reserved for the most capable, flagship-class models.

It supports extended reasoning: it can "think" step by step before answering, which helps on maths, code and complex questions. It can call tools and functions, so developers can connect it to search, databases or other software.

Quality scores

Rankings →

Not rated yet. Independent test results usually appear a few weeks after a model is released.

Benchmark data: Epoch AI, licensed CC BY 4.0

Where to use it

Companies that serve this model through an API: 1. Prices per million tokens, cheapest first.

Provider	Inputi	Outputi	Contexti	Uptime (24 h)i
AlibabaOfficial	$4	$12	1M	99.6%

Availability and prices come from OpenRouter’s public API and are refreshed daily. Uptime is the share of successful requests over the last 24 hours. Some providers run a compressed version of open models (fp8, int4), which is cheaper but can be slightly less accurate.

Use it in your code

Call Qwen3.8 Max Prime through OpenRouter’s OpenAI-compatible API: create a key on openrouter.ai, then run one of these examples.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "qwen/qwen3.8-max-prime", "messages": [{"role": "user", "content": "Hello! What can you do?"}]}'

import os
from openai import OpenAI

client = OpenAI(base_url="https://openrouter.ai/api/v1", api_key=os.environ["OPENROUTER_API_KEY"])
reply = client.chat.completions.create(
    model="qwen/qwen3.8-max-prime",
    messages=[{"role": "user", "content": "Hello! What can you do?"}],
)
print(reply.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://openrouter.ai/api/v1", apiKey: process.env.OPENROUTER_API_KEY });
const reply = await client.chat.completions.create({
  model: "qwen/qwen3.8-max-prime",
  messages: [{ role: "user", content: "Hello! What can you do?" }],
});
console.log(reply.choices[0].message.content);

The same code works with every model on this site: only the model ID changes. Many labs also offer their own API and SDK.

What it costs in practice

1,000 chat replies
≈ 500 tokens in, 300 out each
$5.60
Summarise a 100-page document
≈ 50,000 tokens in, 1,000 out
$0.212
An app with 10,000 requests a day for a month
≈ 1,000 tokens in, 400 out each
$2,640

Cost calculator →

Similar-priced alternatives

Model	Inputi	Outputi	Contexti
Ember-1Fireworks AI	$3	$15	1M	Compare with ⇄
Aion 3.5Aion Labs	$3	$6	256K	Compare with ⇄
Claude Opus 5.5Anthropic	$4	$20	1M	Compare with ⇄
GPT-5.6 Sol ProOpenAI	$4	$20	1.1M	Compare with ⇄
GLM 5.3 PrimeZ.ai (Zhipu)	$2.80	$8.80	1M	Compare with ⇄
MiMo-V2.6-Pro-UltraSpeedXiaomi	$4.35	$8.70	1M	Compare with ⇄

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Frequently asked questions

How much does Qwen3.8 Max Prime cost?: Qwen3.8 Max Prime costs $4 per million input tokens and $12 per million output tokens through the API. For example, 1,000 chat replies of about 500 tokens in and 300 out cost around $5.60.
What is the context window of Qwen3.8 Max Prime?: Qwen3.8 Max Prime can read up to 1,000,000 tokens in one request, about 1,875 pages of text. It can write up to 131,072 tokens in a single answer.
Is Qwen3.8 Max Prime open source?: No. Qwen3.8 Max Prime is a closed model: its weights are not published, so you use it through Alibaba Qwen’s own apps and API, or through cloud providers.
Who makes Qwen3.8 Max Prime?: Qwen3.8 Max Prime is made by Alibaba Qwen. It became available through the API on September 23, 2026.
Can Qwen3.8 Max Prime read images?: Yes. Besides text, it accepts images and video as input.
What are the alternatives to Qwen3.8 Max Prime?: Models with a similar price from other companies include Ember-1, Aion 3.5 and Claude Opus 5.5. You can compare them side by side on this page.