Qwen 3.5 Plus (hosted 397B-A17B)

Closed weights Alibaba February 2026

No estimate

No hardware requirements for this model

The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.

On record

Full specification

Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.

Origin

Who built this model, where, and when it was published.

Organisation
Alibaba
Organisation type
Industry
Country
China
Published
16 February 2026

Size

How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.

Training data
tokens

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Record confidence
Likely

Sources

Where this record came from and when it was last checked.

Last updated
8 April 2026

What the numbers mean

About this model

Qwen 3.5 Plus (hosted 397B-A17B) was published by Alibaba, in the country recorded as China, during February 2026. The category the publisher falls under is industry.

Because the weights are not available, none of the hardware figures elsewhere on this site apply to it.

Answers

Qwen 3.5 Plus (hosted 397B-A17B) — common questions

01

Qwen 3.5 Plus (hosted 397B-A17B)— is it open source?

The licensing was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.

02

Qwen 3.5 Plus (hosted 397B-A17B)— how many parameters does it have?

No parameter count has been published for it, which is why no memory or speed figure appears on this page.

03

Qwen 3.5 Plus (hosted 397B-A17B)— who created it?

It was published by Alibaba, based in China, an organisation categorised as industry.

04

Qwen 3.5 Plus (hosted 397B-A17B)— when was it released?

It was published in February 2026.

05

Qwen 3.5 Plus (hosted 397B-A17B)— what GPU do I need to run it?

None. This is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.

Source

Record last updated 8 April 2026

The other direction

Looking at it from the other side?

This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.