If you’re choosing an AI coding tool for a project, make a note of two dates: the project delivery date and the date the Qwen4-Max preview ends. Alibaba Cloud Bailian has set the preview window from November 11 at 10:00 to November 25 at 24:00 Beijing time. After that, the preview model will be taken offline.

During this period, Bailian offers the preview model only through Token Plan; pay-as-you-go is not currently supported. The Personal Lite plan is priced at 39 yuan per month, with a limited-time price of 19.5 yuan per month for new users, and a monthly allowance of 20,000 Credits. The Personal plan does not currently support cancellation. If you enable auto-renewal, the system will charge you before the plan expires. Before placing an order, note the initial price, renewal price, and auto-renewal setting, and check the billing details shown for your account.

Subscriptions are billed monthly, and models are available during their preview period. If your project is due on November 30, you’ll need to have an alternative model ready when you run it again at the end of the month. You can start by selecting a piece of anonymized code, writing down the acceptance criteria, and testing it once with both the current model and the preview version. Record whether it passes on the first try, how many rounds of rework it takes, and the usage details. According to the official documentation, the model, reasoning, and tool calls all affect Credit consumption. Using a fixed test case makes it easier to judge whether this upgrade really reduces rework.

Next, consider how the work is run. The Personal plan is intended for interactive use in coding and agent tools. Scheduled scripts, application backends, and non-interactive batch calls are outside the plan’s permitted scope. The Personal plan documentation also states that inputs and generated content may be used to improve services and optimize models. Before testing with company code, check your company’s data policies, then choose a sample that can be anonymized.

If you just want to see whether the new model can solve a particularly challenging problem, you can schedule the test within the next two weeks and write down in advance what results would be acceptable. If the work needs to be delivered across a month boundary, prepare a model you can continue using while you validate the results.

Sources: Alibaba Cloud Model Studio Qwen4-Max-Preview model documentation and Token Plan Personal plan documentation. No paid usage tests were conducted for this article.