Qwen

Qwen: Qwen3.5 397B A17B

Qwen3.5 397B A17B Overview

Qwen3.5-397B-A17B is a 397B-parameter (17B active) open-weight multimodal model developed by Alibaba’s Qwen team, released on 2026-02-16 under Apache-2.0. It supports text and image inputs with text outputs, combining a sparse Mixture-of-Experts architecture with Gated Delta Networks for efficient scaling. The model provides native vision-language reasoning and a large ~262K token context window, extendable to ~1M tokens.

As the first open-weight release in the Qwen3.5 family, it positions itself as a high-capacity, long-context alternative in the large vision-language space, balancing scale and efficiency via sparse activation. It is designed for advanced reasoning, coding, agent workflows, and multimodal understanding tasks.

Qwen3.5 397B A17B Interactive Demo

Qwen3.5 397B A17B Details & Performance

Details

Resources

Vision Tasks

Vision LanguageObject DetectionOCRVisual Question AnsweringCaptioning

Features

LLMs with Vision CapabilitiesMultimodal Vision

Usage

Past 30 Days

Performance

Avg. Latency

Arena Rankings

Qwen3.5 397B A17B Vision Evals

#44 of 70 models|

Pass/fail results across 67 image tasks

Overall Score58.21%across 67 eval prompts
Prompts Passed39 / 675 task categories
Avg Response Time56.61son eval prompts
Median tokens / task1.1K in · 54 out~$0.0006 / task · 65/67 tasks
Score key:≥75%40–74%<40%
CategoryPassedScore
Document Understanding7 / 9
77.8%
Defect Detection10 / 15
66.7%
Object Understanding9 / 14
64.3%
Spatial Understanding11 / 19
57.9%
Object Counting2 / 10
20%

Scores based on single evaluation run · Methodology

View all Vision Evals →

Qwen3.5 397B A17B Pricing

Qwen3.5 397B A17B costs $0.385 per 1M input tokens and $2.45 per 1M output tokens.

Input$0.385 / 1M tokens
Output$2.45 / 1M tokens

Pricing updated Jun 22, 2026

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Qwen3.5 397B A17B License

Apache 2.0

License terms and commercial-use guidance for Qwen3.5 397B A17B.

License information is provided as a guide and is not legal advice.