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Qwen3.5-Plus

AlibabaProprietaryPending Human Review

Qwen3.5-Plus is the hosted production tier corresponding to Qwen3.5-397B-A17B. It adds a million-token context by default, official built-in tools, and adaptive tool use to the multimodal foundation model. It supports reasoning, coding, image/video understanding, function calling, and structured output. Hosted model terms govern service access; the related Apache-2.0 checkpoint has its own open-family page and does not establish downloadable weights for every proprietary serving update.

2026-02-16
Hybrid-attention MoE Transformer with vision encoder
Proprietary

Specifications

Architecture
Hybrid-attention MoE Transformer with vision encoder
License
Proprietary
Context Window
1,000,000 tokens
Type
multimodal
Modalities
textimagevideo

Benchmark Scores

Advanced Specifications

Model Family
Qwen
API Access
Available
Chat Interface
Not Available

Capabilities & Limitations

Capabilities
reasoningcode generationtool usevisual understanding
Known Limitations
Hosted service access and limits differ from downloadable Qwen checkpoints.Tool execution depends on API options and the external execution environment.
Notable Use Cases
coding assistantsresearch agentsdocument analysis
Function Calling Support
Yes
Tool Use Support
Yes

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