DeepSeek
DeepSeek's free AI assistant with strong reasoning and coding capabilities, available on the web and mobile.
Overview
DeepSeek is an AI assistant from the Chinese AI research lab of the same name. It provides access to DeepSeek's models, including versions optimised for deep reasoning and long-context tasks. The chat interface is free to use; an API is available for developers on a usage-based model. DeepSeek is operated by a Chinese company and its service is subject to Chinese law; data may be stored and processed in China. It is available as a web app and mobile app.
Key features
- Extended chain-of-thought reasoning mode
- Code generation and debugging
- File and document uploads
- Long context window
- Usage-based API for developers
Pricing
- Pricing model
- Free
- Monthly
- Free
- Yearly
- Not on record
- Free plan
- Yes
- Free trial
- Not on record
- Last verified
- Checked October 4, 2026
Pros
- Free chat tier with no daily message cap for basic use
- Reasoning mode shows step-by-step thinking
- Strong performance on coding tasks
Cons
- Subject to Chinese data laws, which may concern users handling sensitive content
- No built-in web search in the standard chat interface
Who should use it
- Coding tasks and debugging sessions
- Extended reasoning over complex problems
- Users looking for a capable free-tier assistant
Beginner, Intermediate, Advanced · Individuals, Small teams
Who shouldn't
- Users with strict data privacy or data-residency requirements
- Tasks requiring real-time web search
Facts
- Category
- AI assistants
- Platforms
- Web, iOS, Android, API
- Integrations
- None on record
- API
- Available
- Skill level
- Beginner, Intermediate, Advanced
- Team size
- Individuals, Small teams
- Data and privacy
- DeepSeek is operated by a Chinese company; its service is subject to Chinese law and data may be stored and processed in China.
Alternatives
- ChatGPTAI assistants
OpenAI's AI assistant for questions, writing, coding and research, with a free tier and paid plans for more capable models.
From $8/month - ClaudeAI assistants
Anthropic's AI assistant with a long context window, nuanced reasoning and strong performance on writing and analysis.
From $20/month - Google GeminiAI assistants
Google's multimodal AI assistant with live web search and deep integration with Gmail, Docs and Drive.
From $9.99/month - Le ChatAI assistants
Mistral AI's consumer chat product with fast models, web search, image generation and document upload.
From $14.99/monthNot yet verified
Frequently asked questions
How much does DeepSeek cost?
Free. Checked October 4, 2026.
Does DeepSeek have a free plan?
Yes. DeepSeek is free to use.
Who is DeepSeek best for?
Coding tasks and debugging sessions; Extended reasoning over complex problems; Users looking for a capable free-tier assistant.
Which platforms does DeepSeek run on?
Web, iOS, Android, API.
Does DeepSeek have an API?
Yes, DeepSeek offers an API.
What are the alternatives to DeepSeek?
Tools often weighed against DeepSeek include ChatGPT, Claude, Google Gemini, Le Chat.