Qwen3.5-Plus
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