Qwen3.5 Plus 2026-02-15

Qwen3.5 Plus is Alibaba's mid-tier language model from February 2026 with a 1 million token context window.

Strengths

Handles extended context and long-form workloads across general language tasks.

Best for

Applications requiring sustained context over long documents, conversations, or multi-part reasoning within a general-purpose model tier.

Limitations

Superseded by Qwen3.5 Plus 2026-04-20, released two months later with the same capabilities; earlier release date limits relevance for new deployments.