Qwen3.5 Plus

qwen3.5-plus · Qwen

The Qwen 3.5 native vision-language Plus model is built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In multiple task evaluations, the 3.5 series has demonstrated outstanding performance comparable to current leading frontier models, with leapfrog improvements over the 3 series in both pure-text and multimodal capabilities. This model version is functionally equivalent to the snapshot model qwen3.5-plus-2026-02-15.

API Pricing

Input$0.11 / 1M tokens
Output$0.658 / 1M tokens
Cache read$0.011 / 1M tokens

Specifications

Context1M tokens
Max output65.5K tokens
Modalitiestext, image, video
CapabilitiesThinking, Streaming, Tool calling, Web search, Code interpreter, Structured outputs, Prompt caching

Frequently asked questions

What is Qwen3.5 Plus?

The Qwen 3.5 native vision-language Plus model is built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In multiple task evaluations, the 3.5 series has demonstrated outstanding performance comparable to current leading frontier models, with leapfrog improvements over the 3 series in both pure-text and multimodal capabilities. This model version is functionally equivalent to the snapshot model qwen3.5-plus-2026-02-15.

What is the context length of Qwen3.5 Plus?

Qwen3.5 Plus has a 1,000,000 token context window. It supports up to 65,536 output tokens.

How much does Qwen3.5 Plus cost?

On AIHubMix, Qwen3.5 Plus costs $0.11 per million input tokens and $0.658 per million output tokens. Cached input reads are billed at $0.011 per million tokens.

What modalities does Qwen3.5 Plus support?

Qwen3.5 Plus accepts text, image and video input.

What capabilities does Qwen3.5 Plus support?

Qwen3.5 Plus supports tool calling, function calling, structured outputs, web search, long context and thinking. Per-protocol parameter support is listed in the capability table on this page.

How do I call Qwen3.5 Plus via API?

Qwen3.5 Plus is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to qwen3.5-plus — no other code changes needed.

Who created Qwen3.5 Plus?

Qwen3.5 Plus is developed by Qwen. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

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Use Qwen3.5 Plus via the AIHubMix unified API — one interface for every major LLM.