Qwen3.5-27B is a multimodal dense hybrid model developed by Alibaba Cloud’s Qwen team and released in February 2026 as a high-precision entry in the Qwen3.5 "Medium" series. Unlike its Mixture-of-Experts (MoE) siblings, the 27B model utilizes a dense architecture combining Gated Delta Networks with a feed-forward structure, activating its full parameter suite for every inference to maximize reliability. This design provides the highest instruction-following and coding accuracy in its class, with a notable IFEval score of 95.0. The model features a native 262K-token context window, extensible to 1M tokens via YaRN (RoPE scaling), and is released under the Apache-2.0 license.
Optimized for agentic workflows, Qwen3.5-27B employs an early-fusion architecture that treats visual and textual data as a unified stream for deep cross-modal reasoning. This unified approach allows the model to excel in technical analysis and software engineering, matching GPT-5-mini with a 72.4% score on SWE-bench Verified. While the larger MoE variants in the family lead in raw knowledge benchmarks, the 27B model offers a stable and high-density alternative for structured data extraction and spatial perception, contributing to the Qwen3.5 family’s generational leap in OCR accuracy over the previous Qwen3-VL series.
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Past 30 DaysQwen3.5 27B has not yet been evaluated on the current benchmark. The results below are from the legacy version of Vision Evals, our previous benchmark. See the current Vision Evals
| Category | Passed | Score |
|---|---|---|
| Defect Detection | 12 / 15 | 80% |
| Object Understanding | 11 / 14 | 78.6% |
| Document Understanding | 7 / 9 | 77.8% |
| Spatial Understanding | 14 / 19 | 73.7% |
| Object Counting | 4 / 10 | 40% |
| Category | Passed | Score |
|---|---|---|
| Handwritten Math | 10 / 10 | 100% |
| License Plate Recognition | 28 / 30 | 93.3% |
| Focused Scene OCR | 84 / 99 | 84.8% |
| VQA & Extraction | 50 / 60 | 83.3% |
| Text Recognition | 24 / 30 | 80% |
Scores based on a single evaluation run · Methodology
View all legacy Vision Evals results →Qwen3.5 27B costs $0.260 per 1M input tokens and $2.60 per 1M output tokens.
Pricing updated Jul 21, 2026
Estimated cost per task vs. Visual Understanding score, for this model and others ranked near it. Upper-left is the sweet spot (high quality, low cost). Based on Vision Evals (legacy) results.
11 of 11 models plotted
| Model | Score | Median tokens | Est. cost / task | Compare |
|---|---|---|---|---|
| GPT-5.6 Terra | 76.1% | 1.5K | $0.0041 | Compare |
| GPT-5.6 Sol | 76.1% | 1.5K | $0.0073 | Compare |
| Gemini 3.1 Pro | 75.8% | 1.1K | $0.0024 | Compare |
| Gemini 3 Flash | 74.6% | 1.4K | $0.0014 | Compare |
| GPT-5 Mini | 73.1% | 1.8K | $0.0006 | Compare |
| Qwen3.5 27B(this model) | 71.6% | 1.2K | $0.0003 | — |
| Claude Sonnet 5 | 70.2% | 2.2K | $0.0048 | Compare |
| Claude Sonnet 4.6 | 70.2% | 2.3K | $0.0080 | Compare |
| GPT-5.6 Luna | 70.2% | 1.5K | $0.0017 | Compare |
| Gemini 2.5 Pro | 70.2% | 856 | $0.0060 | Compare |
| Gemini 3.1 Flash-Lite | 68.7% | 1.1K | $0.0003 | Compare |
Other models worth comparing for similar use cases.
License terms and commercial-use guidance for Qwen3.5 27B.
This model is released under the Apache License 2.0, a permissive open-source license that allows commercial use, modification, distribution, and patent use.
Yes. Under the terms of the Apache 2.0 license, you can freely use this model for commercial purposes, including in proprietary products. You must retain the copyright notice and disclaimers when redistributing.
License information is provided as a guide and is not legal advice.
Yes. Qwen3.5 27B accepts image input, and on Roboflow's previous vision benchmark it passed 71.6% of visual understanding tasks (#16 of 77) and scored 85.6% on OCR. You can test it on your own image in the demo above.
Qwen3.5 27B has not yet been evaluated on Roboflow's current Vision Evals. The results on this page are from the previous benchmark.
Yes. The demo on this page runs Qwen3.5 27B in the free Roboflow Playground: upload an image and see results in seconds. A free account unlocks unlimited runs.