Qwen3.5 Plus
Chat model · Alibaba ·
Qwen3.5 Plus is a chat model by Alibaba. In Endless it costs 64.8 credits per 1M input tokens and 388.8 per 1M output tokens, on the Hobby plan and up.
Qwen3.5 Plus is Alibaba's hosted Qwen3.5 model for coding and analysis, with a 1M-token context that keeps long conversations and files in view.
- Price
- 64.8 credits per 1M input tokens
- 388.8 credits per 1M output tokens
- Availability
- Available on Hobby and above
- Context window
- 1M tokens
- Max output
- 64K tokens
- Inputs
- Text, images
- Languages
- 201 languages and dialects
About Qwen3.5 Plus
Qwen3.5 Plus is the hosted version of Alibaba's open-weight Qwen3.5-397B-A17B. It pairs linear attention with a sparse mixture-of-experts design, so only 17 billion of its 397 billion parameters run per token, which keeps it quick. It was trained as a native vision-language model, reads images alongside text, and it supports 201 languages and dialects.
Its 1M-token context window is the practical draw. You can paste a large module, a long thread of requirements or several reports, then keep asking follow-ups without the model losing earlier details. Teams use it to review code, write and fix scripts, compare documents and turn messy notes into structured summaries.
Qwen3.8 Max is the larger Qwen option in Endless, built for the hardest multi-day coding and visual tasks. Qwen3.5 Plus is the quicker choice when the work is steady and conversational, and you can move between the two in the same workspace chat.
Best for
- Code review and bug fixing across large files
- Long research threads where earlier context matters
- Comparing and summarizing several documents at once
- Multilingual analysis and drafting
Questions about Qwen3.5 Plus
- What is Qwen3.5 Plus?
- Qwen3.5 Plus is a chat model by Alibaba.
- Is Qwen3.5 Plus free?
- Qwen3.5 Plus needs the Hobby plan or higher, so the Free plan doesn't include it. The Free plan gives you 100 credits when you create a workspace and 50 credits every week to try other chat models.
- How much does Qwen3.5 Plus cost?
- In Endless it costs 64.8 credits per 1M input tokens and 388.8 per 1M output tokens, on the Hobby plan and up.
- How do I use Qwen3.5 Plus?
- Start a chat in your Endless workspace and choose Qwen3.5 Plus in the model picker. Endless can also pick the best model for each message on its own.
- What are the alternatives to Qwen3.5 Plus?
- Similar models you can use in Endless include Qwen3.8 Max, GPT-6.1 Sol, and Claude Opus 5.5. Each one has its own page with its price and plan.
- Is Qwen3.5 Plus open source?
- Qwen3.5 Plus is the hosted, API version of Qwen3.5-397B-A17B, whose weights are openly available. The hosted version adds production features such as the 1M-token context.
- How long a conversation can Qwen3.5 Plus handle?
- Its context window holds up to 1M tokens, enough for long chats with large files attached, and it can write up to about 64K tokens in a single reply.
How to use Qwen3.5 Plus in Endless
- 01
Open a chat
Start a chat in your workspace and choose Qwen3.5 Plus in the model picker.
- 02
Bring your context
Attach files, mention a project with @, or ask it to search the web and social media.
- 03
Turn answers into work
Generate images and video, write documents and save what matters to a project.
Related models
Qwen3.8 Max
by Alibaba
Multi-day coding projects and deep reading of images and documents
162 / 486 credits per 1M tokens
GPT-6.1 Sol
by OpenAI
Near-flagship agentic coding and professional work at lower cost
162 / 810 credits per 1M tokens
Claude Opus 5.5
by Anthropic
Long agentic coding and research work over a 1M-token context
324 / 1620 credits per 1M tokens
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