Professional Writing
Reports, proposals, articles, and documentation with polished quality.
Qwen3.5-Plus — The Premium All-Rounder
Qwen3.5-Plus is the premium hosted model for strong all-around performance across writing, coding, and analysis. Try it free.
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Qwen3.5-Plus is the default model for this page. Premium Qwen 3.5 model for stronger all-around performance across writing and code.
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Premium
General
Starter prompts
Free to try in the browser. Plus uses Qwen3.5-397B-A17B as its public reference base.
Tier
Premium
Model Type
Hosted
Context
1M default
Base Model
397B-A17B
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Overview
One Model for Everything
Qwen3.5-Plus is the hosted path for people who want one strong browser/API model without reading every open-weight card first. It is built on Qwen3.5-397B-A17B, then adds a 1M default context window, built-in tools, and adaptive tool use.
Base Model
Plus scores are based on Qwen3.5-397B-A17B, the closest public reference in the family.
1M Default Context
Plus ships with a 1M default context window for longer documents, chats, and code context.
Built-In Production Features
The hosted version adds built-in tools and adaptive tool use instead of acting like a plain raw checkpoint.
Qwen3.5-Plus Benchmark
How Qwen3.5-Plus compares to nearby models in the Qwen family.
Model
MMLU-Pro
GPQA / GPQA-family
LiveCodeBench v6
Qwen3.5-122B-A10B
Mid-tier MoE model for deeper reasoning and agent tasks.
Updated 2026-04-02
MMLU-Pro
86.7
GPQA / GPQA-family
86.6
LiveCodeBench v6
78.9
Qwen3.5-397B-A17B
Flagship open-weight Qwen3.5 model, also the base model behind Qwen3.5-Plus.
Updated 2026-04-02
MMLU-Pro
87.8
GPQA / GPQA-family
88.4
LiveCodeBench v6
83.6
Qwen3.5-Plus
HostedHosted version built on Qwen3.5-397B-A17B with additional tooling and a 1M context window.
Scores reference the Qwen3.5-397B-A17B base model.
Updated 2026-04-02
MMLU-Pro
87.8
GPQA / GPQA-family
88.4
LiveCodeBench v6
83.6
Scores are from public model cards and the qwen.ai release page. Hosted models are labeled with their open-weight base.
Updated 2026-04-02Use Cases
What Qwen3.5-Plus Is Best For
Plus is the default choice when quality matters and you want a single model for diverse tasks.
Full-Stack Coding
From frontend components to backend logic, Plus handles the full spectrum.
Complex Analysis
Financial analysis, market research, and data-driven decision making.
Multilingual Tasks
Strong performance across English, Chinese, and other languages.
Creative Projects
Storytelling, brainstorming, and creative content with depth and nuance.
Teaching & Explanation
Clear, well-structured explanations of complex topics at any level.
FAQ
Qwen3.5-Plus FAQ
Common questions about the Plus model.
How does Plus compare to the 397B flagship?
Qwen3.5-Plus is the hosted version built on 397B-A17B. It uses that open model as its public reference base, then adds a 1M context window and production features on top.
Is Plus better than 27B?
Yes. Plus delivers noticeably stronger output across all categories. Use 27B when you need to self-host on limited hardware; use Plus when quality is the priority.
Can I run Plus locally?
Not as the identical hosted product. If you need the closest public open-weight reference for local deployment, use Qwen3.5-397B-A17B and treat Plus as the hosted production layer on top of it.
When should I use a different model?
Use Flash when latency is the main concern. Use the open 397B-A17B release when you need the public flagship checkpoint itself. Use Plus when you want the hosted all-rounder with the least model-picking overhead.
What is Plus's context window?
1M tokens by default. This is larger than the 262K native context on the open Qwen 3.5 models.
Is Plus free to use here?
Yes. You can try Qwen3.5-Plus for free on this site. It is a hosted model accessed through APIs.
How does Plus compare to Qwen3.6-Plus?
Qwen3.6-Plus is the newer generation with improved agentic coding and tool use. Plus remains a strong choice if you prefer the established Qwen 3.5 behavior.
Does Plus support tool calling?
Yes. Plus includes built-in tools and adaptive tool use, so it is a good fit for multi-step workflows that need stronger reasoning than Flash.