Is a Qwen API key free?
A Qwen API key is an authentication credential; having one does not make API calls free. Alibaba Cloud Model Studio bills API calls pay-as-you-go by default. Its documented new-user free quota applies only to eligible models in the Singapore region with International deployment scope—not the US (Virginia) region. For example, the pricing table lists a 1 million-token free quota for Qwen3.8-Max in Singapore, subject to its validity and eligibility terms. (Model Studio pricing)
If you plan to use the US (Virginia) endpoint, do not budget on receiving that Singapore free quota there. The offer depends on the model’s region and deployment scope, not simply on having a key. Model Studio keys, endpoints, and model lists are region-specific and cannot be used across regions. (API key documentation)
What the free allowance covers
For the international service, the free-quota documentation says to complete your account information before activating Model Studio. Eligible free quota is granted for qualifying Singapore-region models with International deployment scope. The allowance covers real-time inference; it does not cover batch invocation, fine-tuning, model deployment, custom models, or certain related services and storage charges. (Free-quota terms)
The quota is valid for 90 days, starting from the latest of these events: Model Studio activation, the model’s release, or approval of a model request. Unused quota still expires when its validity period ends. After the quota is exhausted or expires, continued inference use can incur pay-as-you-go charges. (Free-quota terms)
The documentation says Free Quota Only is disabled by default and can be enabled in advance to stop service when quota runs out. Do not assume that this setting is enabled, or that it protects you after quota expiry: confirm its behavior for your account and model before relying on it to prevent charges. (Free-quota terms)
What Qwen API calls cost
For Qwen3.8-Max on Model Studio’s Singapore International deployment, the listed standard prices are US$2 per 1 million input tokens and US$6 per 1 million output tokens. The pricing page says it lists standard prices; check the console for applicable promotions and the current rate for your selected region. These Singapore prices are not a quote for the US (Virginia) endpoint. (Model Studio pricing)
Example budget: At those Singapore rates, 100,000 input tokens and 20,000 output tokens would cost US$0.32 before any applicable free quota: (100,000 ÷ 1,000,000 × $2) + (20,000 ÷ 1,000,000 × $6). This is a calculation from the listed standard rates, not a test or a US-region price.
How to create a key
You need an Alibaba Cloud account, or a RAM user with administrator or API-key-page permissions, to create a Model Studio key. The official instructions are:
- Open the Alibaba Cloud Model Studio API Key page and select the region you intend to use.
- Click Create API Key, configure the dialog’s settings, and confirm. If you cannot create a key, the documentation says to contact a super administrator or workspace administrator.
- Copy or download and securely save the key when it is displayed. The full key is not available to copy again after you close the dialog; keep it confidential because requests made with it may incur charges.
Use the key with its corresponding region’s endpoint. A key created for one region will not work across regions. (API key documentation)
Creating a key does not remove usage charges. Before sending production traffic, check the selected model’s regional price, free-quota eligibility and remaining balance, and whether Free Quota Only is enabled—and confirm what happens when the quota expires. The free allowance may help with trials, but it is temporary and region-limited; the cited pricing and quota pages do not establish that it is sufficient for a production workload or provide a service guarantee.
Sources
Alibaba Cloud Model Studio: Model inference pricing