Qwen3.5-397B-A17B
Active Parameters
397B
Context Length
262.144K
Modality
Multimodal
Architecture
Mixture of Experts (MoE)
License
Apache 2.0
Release Date
24 Feb 2026
Knowledge Cutoff
-
Technical Specifications
Total Expert Parameters
17.0B
Number of Experts
512
Active Experts
11
Attention Structure
Grouped-Query Attention
Hidden Dimension Size
4096
Number of Layers
60
Attention Heads
32
Key-Value Heads
2
Activation Function
SwigLU
Normalization
RMS Normalization
Position Embedding
ROPE
Qwen3.5-397B-A17B
Qwen3.5-397B-A17B is Alibaba Cloud's largest and most capable multimodal foundation model, released February 2026. With 397B total parameters and 17B activated through a Mixture-of-Experts architecture (512 experts), it achieves state-of-the-art scores on MMLU-Pro (87.8%), GPQA Diamond (88.4%), SWE-bench Verified (80.0%), and Terminal-Bench 2.0 (54.0%). It features unified vision-language capabilities, extended context up to 1M tokens, and excels in coding agents, general agents, multimodal reasoning, and multilingual understanding across 201 languages.
About Qwen 3.5
Qwen 3.5 is Alibaba Cloud's latest-generation foundation model family, released February 2026. It represents a significant leap forward, integrating breakthroughs in multimodal learning (unified vision-language foundation), efficient hybrid architecture (Gated Delta Networks with sparse Mixture-of-Experts), scalable reinforcement learning across million-agent environments, and global linguistic coverage spanning 201 languages. Available under Apache 2.0 license with open weights.
Other Qwen 3.5 Models
Evaluation Benchmarks
No evaluation benchmarks for Qwen3.5-397B-A17B available.
Rankings
Overall Rank
-
Coding Rank
-
GPU Requirements
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Context Size: 1,024 tokens