DeepSeek V4
DeepSeek's open model, in one chat with Claude, GPT, Gemini and more.
DeepSeek V4 at a glance
| Made by | DeepSeek |
|---|---|
| Released | 24 April 2026, as a preview[1] |
| Open weights | Yes, under the MIT licence[2] |
| Longest input | 1M tokens[1] |
| In Chatly | Yes, in the Chat model picker. It runs through DeepSeek's own API. |
| Where DeepSeek keeps data | In the People's Republic of China, according to its privacy policy[3] |
| DeepSeek's newest | DeepSeek V4.1 Flash, released 10 September 2026. Not in Chatly yet[4] |
Because DeepSeek V4 runs through DeepSeek's API, treat what you send it as you would in DeepSeek's own app. For anything sensitive, pick Claude, GPT or Gemini in the same chat.
Try it on something real
Each one opens Chatly Chat on DeepSeek V4 with the request ready.
Ask DeepSeek V4A shop raises a price by 20% and then cuts it by 20%. Is it back to the original? Show the working.A coding task
Ask DeepSeek V4Write a Python function that removes duplicate rows from a CSV file and keeps the newest one, with an example.A logic puzzle
Ask DeepSeek V4Three friends each tell one lie and one truth about who ate the cake. Here are their statements. Who ate it?A second check
Ask Claude Fable 5Check this answer from DeepSeek step by step and tell me whether it is right:
Then put the answer to work
The same plan runs the agent behind the chat. It makes the files, not just the text, and works with Gmail, Slack and 40+ other apps.
Turn an answer into slides
A deck with real charts and speaker notes, ready to present or edit.
Write the document
Reports, proposals, contracts and invoices, formatted and ready to send.
Build the spreadsheet
Budgets, trackers and models that arrive built, filled in and charted.
Publish a website
A landing page or a full site, live on its own link from one request.
Make the images
Product shots, headshots and social posts from the top image models.
Research with sources
Deep research that reads the web for you and cites every claim.
Chatly plans
Three plans, and Teams on top: pick how long you pay for, and how many credits.
Standard
$18/ month, billed quarterly
Perfect for getting started with AI
Subscribe7K credits / month
- Flash and Pro modes
- 3 concurrent agent tasks
- 2 scheduled tasks
- Connect up to 2 apps, like Gmail and Slack
- 2 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
Professional
$36/ month, billed quarterly
More credits, more room to create
Subscribe- Flash, Pro and Ultra modes
- 5 concurrent agent tasks
- 5 scheduled tasks
- Connect up to 5 apps, like Gmail and Slack
- 5 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
- AI ad creator
- AI video editor
Ultra
$183/ month, billed quarterly
Built for power users who never hit limits
Subscribe- Flash, Pro and Ultra modes
- Unlimited concurrent agent tasks
- 25 scheduled tasks
- Connect all 40+ apps
- 25 knowledge bases
- Commercial usage rights
- Build and publish websites
- Create presentation-ready slides
- Deep research with citations
- Generate docs, sheets and audio
- Generate images and videos
- AI ad creator
- AI video editor
- Early access to new models
Chatly for Teams: pooled credits and shared seats, from three seats. Talk to us
Common questions
What is DeepSeek V4?
DeepSeek V4 is an open-weight model from DeepSeek, released in April 2026 under the MIT licence, with a context of a million tokens. Chatly notes it for sharp reasoning and deep analysis.
Is DeepSeek V4 safe to use in Chatly?
In Chatly, DeepSeek V4 runs through DeepSeek's own API. DeepSeek's privacy policy says it stores personal data in China, so avoid sending it anything sensitive. Claude, GPT and Gemini are in the same picker if you prefer another provider.
Does Chatly have DeepSeek V4.1?
Not yet. DeepSeek released V4.1 Flash on 10 September 2026. Chatly runs DeepSeek V4.
Is DeepSeek free?
DeepSeek's own app is free. In Chatly, DeepSeek V4 comes with your Chatly plan alongside 26 other models.
Is Chatly made by DeepSeek?
No. Chatly is an independent product with DeepSeek, Claude, GPT, Gemini and other models in one place. It is not affiliated with DeepSeek.
Plans, prices and models change, so check each company's own site before you buy.
Ask your own question
The fastest way to choose is to try. Pick one model or two and ask.
Model and product names belong to their makers and are used here only to compare. Chatly is not affiliated with Anthropic, OpenAI, Google, xAI, DeepSeek, Moonshot AI or Perplexity.
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Chatly for iPhone
Ask Claude, GPT or Gemini on the train, switch models mid-chat, and pick the thread up on your phone. Every chat you start here is on your phone.
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Every model on your desktop, with the files and screenshots you already have to hand.
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