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 NUMBER071

Specifications

Only published specifications are shown.

Total parameters

397B

Active parameters

17B

Architecture

Hybrid

Context

262K

Input modalities

Text · Image

Open weights

Yes

License

Apache-2.0

Status

Legacy

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

PreviousQwen3-Next-80B-A3B80B · 262K ctx

CurrentQwen3.5-397B-A17B397B · 262K ctx

New capabilities Native multimodal Agent

Gated DeltaNetGated Attention

Native multimodalHybrid reasoningCodingAgent

2026-02-16Open weights

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

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