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Model index
Alibaba Cloud·Qwen

Qwen3.5-397B-A17B

The first Qwen3.5 flagship, extending the Qwen3-Next hybrid architecture into a native multimodal agent model.

LegacyReasoningCodingAgentMultimodalOpen weights
MODEL NUMBER110
First public date
2026-02-16
Organization
Alibaba Cloud
Family
Qwen
01

Specifications

Only published specifications are shown.

Total parameters
397B
Active parameters
17B
Architecture
Hybrid
Context
262,144 tokens
Input modalities
Text · Image
Open weights
Yes
License
Apache-2.0
Status
Legacy
02

Overview

Release dates

— Qwen3.5-397B-A17B opened as the first Qwen3.5 release. ↗

03

Specifications alongside predecessor

Compared with Qwen3-Next-80B-A3B ↗

PreviousQwen3-Next-80B-A3B80B · 262K ctx
CurrentQwen3.5-397B-A17B397B · 262K ctx
04

Architecture & capabilities

Attention

Gated DeltaNetGated Attention

Model capabilities

Native multimodalHybrid reasoningCodingAgent
05

Release history

Open weights

Qwen3.5-397B-A17B opened as the first Qwen3.5 release.

View source
06

Related models

Select a card to view the related model.

PredecessorQwen3-Next-80B-A3BView details →SuccessorQwen3.6-35B-A3BView details →
07

Sources

01
Qwen3.5 model seriesQwen Team
Official · Verified
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