AlibabaLanguage modelPreview

Qwen4-Max-Preview

Summary

Qwen4-Max-Preview is the API preview of Alibaba's Qwen4 flagship. It processes text, images, and video. It can call tools and produce structured text responses.

The preview is offered through Alibaba Cloud's Token Plan. Thinking and the final answer share the output budget of up to 393,216 tokens.

Similar models

More models of the same kind as Qwen4-Max-Preview, chosen by model line, developer, size, price and release date.

All specifications

Input and output

Input: Text, images, and video.; Source: Input
Output: Text. The 393,216-token output limit is shared by thinking and the final answer.; Source: Output

Watermarking and provenance

AI watermarking refers to invisible signals embedded in the output. Visible marks and provenance metadata are listed separately. Unknown means there is insufficient evidence for that particular field.

AI watermarking: Unknown; no source
Watermarking technique: Not known; no source

Licence and access

Shutdown: None announced; no source

API

API model ID: qwen4-max-preview; Source: API model ID

Further details

Reasoning: Available effort levels are low, medium, and xhigh. The default is xhigh.; Source: Reasoning
API capabilities: Tool calls, web search, and structured outputs. Compatible with OpenAI Chat Completions, Responses, and Anthropic Messages.; Source: API capabilities
Preview period: From November 11, 2026 at 10:00 to November 25, 2026 at 24:00 (UTC+8). Alibaba plans to retire this preview ID after that window.; Source: Preview period

Prices

API plan: API access is included in Token Plan Personal or Team.Source

Frequently asked questions about Qwen4-Max-Preview

How large is the context window of Qwen4-Max-Preview?

1 M tokens. That is how much text Qwen4-Max-Preview reads at once, about 1,500 A4 pages.

Page count as a rule of thumb from Artificial Analysis

Context windowTokens the model reads at once · higher is better

Qwen4-Max-PreviewRank 37 of 1121M

Claude Fable 5.21M

Claude Opus 5.51M

Claude Fable 5.11M

Claude Sonnet 5.51M

Muse Wonder Full1M

Claude Opus 51M

Can I run Qwen4-Max-Preview locally?

No. Alibaba does not publish the weights.

Stated by Alibaba

Open weights: no
License: n/a
Parameters: n/a
active per token: n/a

Sources and data date

Type	Evidence and data date
Input	Documented modalities. Retrieved November 12, 2026. Source: Alibaba Cloud Model Studio: Qwen4-Max-Preview · Alibaba Cloud Model Studio: Qwen4-Max-Preview (retrieved November 12, 2026) · Alibaba Cloud Model Studio: Qwen4-Max-Preview · Editorial description reviewed November 12, 2026
Output	Documented modalities. Retrieved November 12, 2026. Source: Alibaba Cloud Model Studio: Qwen4-Max-Preview · Alibaba Cloud Model Studio: Qwen4-Max-Preview (retrieved November 12, 2026) · Alibaba Cloud Model Studio: Qwen4-Max-Preview · Editorial description reviewed November 12, 2026