Qwen3.5 Plus 2026-02-15

The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In a variety of task evaluations, the 3.5 series consistently demonstrates performance on par with state-of-the-art leading models. Compared to the 3 series, these models show a leap forward in both pure-text and multimodal capabilities.

ChatQwen1M tokens$0.2834 / $1.7005 · 1M

qwen/qwen3.5-plus-02-15

Context
1M tokens
Completion cap
65,536
Tools
Yes
JSON
Yes
Released
2026-02-16

Call it from Geek Hub

Same OpenAI SDK. Change the base URL and the model id.

curl https://api.geekhub.mx/v1/chat/completions \
  -H "Authorization: Bearer $GEEKHUB_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen/qwen3.5-plus-02-15",
    "messages": [{"role": "user", "content": "Hola"}]
  }'
Get an API key

Frequently asked questions

What is Qwen3.5 Plus 2026-02-15?
The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In a variety of task evaluations, the 3.5 series consistently demonstrates performance on par with state-of-the-art leading models. Compared to the 3 series, these models show a leap forward in both pure-text and multimodal capabilities. Qwen3.5 Plus 2026-02-15 runs on the Geek Hub API (OpenAI-compatible). Model id: qwen/qwen3.5-plus-02-15.
Is Qwen3.5 Plus 2026-02-15 free?
No. Input is $0.2834 per 1M tokens and output is $1.7005 per 1M tokens on Geek Hub (markup included).
What is the context length of Qwen3.5 Plus 2026-02-15?
Qwen3.5 Plus 2026-02-15 has a 1M tokens context window. It supports up to 65,536 completion tokens.
Does Qwen3.5 Plus 2026-02-15 support tool calling and structured outputs?
Qwen3.5 Plus 2026-02-15 accepts tools and tool_choice for function calling. It also supports structured outputs via a JSON schema in response_format.
When was Qwen3.5 Plus 2026-02-15 released?
Qwen3.5 Plus 2026-02-15 was released on 2026-02-16.

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