What makes Qwen3.5-Plus the leading open-source AI model?

Qwen3.5-Plus, recently released by Alibaba, has been recognized as a groundbreaking achievement in the field of AI. With a total parameter count of 397 billion but activating only 17 billion parameters at a time, it's hailed as a significant innovation in AI model efficiency and effectiveness.

Key Features That Set Qwen3.5-Plus Apart

• Massive Computational Advantage: Qwen3.5-Plus supersedes models with trillions of parameters, like its predecessor Qwen3-Max, while consuming 60% less VRAM and improving inference throughput by up to 19 times.
• Native Multimodal Capabilities: Unlike its text-only predecessors, it uses visual and text mixed tokens, offering unparalleled performance in reasoning, STEM tasks, and multilingual capabilities, supporting 201 languages.
• Top Performance Benchmarks: The model has excelled in critical evaluations such as MMLU-Pro (87.8), GPQA (88.4), and IFBench (76.5), consistently outperforming even high-profile competitors like GPT-5.2 and Claude 4.5.
• Cost Efficiency: Despite its cutting-edge features, the API usage cost is remarkably low at just 0.8 RMB per million tokens, making it highly accessible to developers.

Qwen3.5-Plus's significant advancements in efficiency, multimodal capabilities, multilingual support, and affordability make it a leader in the arena of open-source AI models.