About Qwen 4
Qwen 4 is the new generation of Alibaba's Qwen models. It writes and fixes code, answers science questions and reads long documents, recordings and images
Qwen 4 comes in four versions, from the Max flagship to the small open 27B model, so you choose between top quality and speed
Qwen 4 takes a whole codebase, a stack of reports or an hour-long video in one request
- Developer
- Alibaba Cloud
- Versions
- Max, Plus, Flash, 27B
- Context
- Up to 1M tokens
- Input
- Text, images, video
- Strengths
- Code, science, long files
- Family
- Qwen
Qwen 4 main features
Four versions for different tasks, fast work with long files and recordings, and strong coding and science
The next Qwen generation
Qwen 4 is the first new Qwen generation since Qwen 3, rebuilt from its core parts. It does more with less compute, so even the small versions take on tasks that needed a flagship before
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Four models: Max, Plus, Flash and 27B
Pick the Qwen 4 version that fits the task. Max takes on the hardest problems, Plus balances quality and speed, Flash answers fast at a low cost, and 27B is a small model with open weights
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A new architecture for long inputs
Qwen 4 reads up to 1 million tokens of text, images and video and stays fast, because it turns on only a small share of its parameters for each token. Attach a two-hour meeting recording with the slide deck and ask which numbers don't match
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Coding and science
Qwen 4 finds bugs in large projects and writes fixes that pass the tests. It also solves graduate-level problems in physics, chemistry and biology. Paste a failing test, and Qwen 4 points to the broken line and fixes it
Try itWhy use Qwen 4 on Overchat AI
One account for chat, images and video, on every device
Superchat AI agent
Superchat Agent automatically routes your message to the model best suited for the task. It can generate images and videos, use the AI tools built into Overchat AI, and learn from your interactions to get better over time
Chat with images and files
Upload PDFs, spreadsheets, code and images and ask about them in the chat. You can also dictate a message instead of typing it
Go beyond text
Generate images with Nano Banana and GPT Image and videos with Seedance and Kling in the same account, with the same credits as chat
On the web, iPhone and Android
Start a chat on your laptop and finish it on your phone. The Overchat AI app has the same models, and your chats stay in one account on every device
How to use Qwen 4 on Overchat AI
On the web, iOS or Android
- 01
Pick Qwen 4
Open the model list next to the message field and choose Qwen 4
- 02
Write your prompt
Describe the task: what you need, the format and the length. Attach files or images if the task needs them
- 03
Get the answer and keep going
Ask a follow-up, ask for a shorter version or switch to another model without starting over
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Models marked Soon are coming to Overchat AI; the rest are available now
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Qwen 4 FAQ
If you have any questions,
reach out to us at hello@overchat.ai
Qwen 4 is the new generation of Alibaba's Qwen models, built for coding, science and long files. It comes in Max, Plus, Flash and 27B versions
Qwen 4 is expected before the end of 2026. It will be added to Overchat AI on release
Not yet. Until then, use Qwen 3.8 Max, the newest Qwen flagship, or Superchat, which picks the model for you on Overchat AI
Qwen 4 Max for the hardest tasks, Qwen 4 Plus for everyday work, Qwen 4 Flash for quick answers, and Qwen 4 27B, the open-weight version
Qwen 4 27B comes with open weights, so you can run it on your own computer. Max, Plus and Flash work online, including on Overchat AI
Qwen 4 27B, the open version, has 27 billion parameters. Alibaba hasn't shared the size of Max, Plus and Flash. The 5 to 10 trillion parameter models in Alibaba's plans are Qwen 4.5 and Qwen 5
No. Qwen 3.9 Max continues the Qwen 3 generation. Qwen 4 is a new generation with a redesigned architecture
