# Qwen: Qwen3.5 Plus 2026-02-15: AI model fact sheet

- **Provider:** qwen
- **Released:** 2026-02-16
- **Context window:** 1,000,000 tokens
- **Max output:** 64,000 tokens
- **Parameters:** Not disclosed
- **API pricing:** $0.40 / 1M input, $2.40 / 1M output
- **OpenRouter ID:** qwen/qwen3.5-plus-02-15
- **Capabilities:** conversation, reasoning, code-generation, analysis, tool-use, agentic-tool-use, translation

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. Supports text, image, and video inputs with reasoning and tool use.

## Benchmarks

| Benchmark | Score |
| --- | --- |
| MMLU-Pro | 87.8 |
| GPQA Diamond | 88.4% |
| IFEval | 92.6% |

Source: real side-by-side outputs, pricing and specs at https://rival.tips/models/qwen3.5-plus-02-15