DeepSeek

DeepSeek

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Free chatbot on DeepSeek V4 reasoning models: code, math, web search, 1M-token context.

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Pricing
Free
Free plan
Yes
Platforms
Web, iOS, Android
Access
API, Open source

DeepSeek is a Chinese company from Hangzhou and its chatbot built on proprietary language models. DeepSeek models are known for delivering performance on par with leading Western models while costing several times less and being released with open weights—you can download and run them locally. The chat is free, works in a browser and in iOS and Android apps, and understands Russian.

What It Can Do

  • Chat and reasoning. A deep-thinking mode for math, logic, and programming tasks.
  • Internet search. Answers based on up-to-date web pages.
  • Files. Reading documents, spreadsheets, and images containing text.
  • Long context. V4-series models support contexts of up to 1 million tokens.
  • API. Compatible with the OpenAI format and supports web search and tool calling.
  • Open models. Weights are published on GitHub and Hugging Face.

Pricing

The chat on the website and in the apps is free. The API is billed by token: for example, DeepSeek-V4.1-Flash starts at $0.15 per 1 million input tokens and $0.6 per 1 million output tokens outside peak hours; during peak hours, the price is twice as high.

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FAQ

Do I need a VPN to use the service?

It depends on your region. If the service is not available in your country, its site says so; a VPN is a way around regional limits, but follow the rules of the service and the laws of your country. The easiest check is to open the service site.

Is it safe to share my data with an AI tool?

Do not enter passwords, payment details, personal data or trade secrets. Many services store requests and may use them to train models, especially on free plans. Check the privacy policy and the settings of the service, where training can often be switched off.

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