DeepSeek - Free AI Chat
Powerful AI assistant for writingcodingresearchand everyday questions. No signupno limitscompletely free.
- Write and edit any kind of text
- Get coding help and explanations
- Solve math problems step by step
- Research topics and summarize info
More than just chat
Built for everyday work: writingthinkingplanning and explaining.
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01Paste your messy draft or bullet pointsEmailspostsdocsfeature descriptions — anything
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02Tell the AI who will read it"Short and direct""more friendly""for a busy client"
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03Get a version you can sendthen iterateAsk for alternatives without losing context
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01Describe your situationSide projectfeature roadmapstudy plan — whatever
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02Let the AI ask clarifying questionsIt digs into constraints and what matters to you
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03End up with concrete next stepsNot just "ideas" — a realistic checklist
Built for how you work
Whether you're writing codecrafting contentor studying for exams — DeepSeek adapts to your workflow.
Marketer
Create compelling content that converts
- Write ad copy and headlines
- Generate social media posts
- Craft email campaigns
- Analyze competitor messaging
Developer
Code fasterdebug smarter
- Explain and refactor code
- Generate unit tests
- Debug error messages
- Write documentation
Student
Learn fasterunderstand deeper
- Explain complex concepts
- Summarize research papers
- Practice for exams
- Proofread essays
Writer
Overcome blockspolish your prose
- Brainstorm story ideas
- Edit and rephrase text
- Check tone and
- Generate outlines
Start in seconds
No account needed. Just open the chat and ask your question.
Open the chat
Click "Open Chat" or go to the chat page. Works on any device.
Type your question
Be specific about what you need. The more contextthe better.
Get your answer
DeepSeek responds in seconds with detailedhelpful information.
See it in action
Click a prompt to see how DeepSeek responds.
Powered by DeepSeek-V3.2
The latest model with Sparse Attention — faster inferencelower costs.
Choose your model
DeepSeek offers several models optimized for different tasks.
| Feature | V3.2 | R1 | V3 | R1-Distill |
|---|---|---|---|---|
| Best for | Everyday tasks | Deep reasoning | Fast responses | Local deployment |
| Parameters | 685B (MoE) | 671B (MoE) | 671B (MoE) | 1.5B — 70B |
| Context window | 128K tokens | 128K tokens | 128K tokens | 32K tokens |
| Thinking mode | ✓ | ✓ | ✗ | ✓ |
| Tool use | ✓ | ✗ | ✓ | ✗ |
| Math & coding | ★★★★ | ★★★★★ | ★★★ | ★★★ |
| Response speed | ★★★★ | ★★ | ★★★★★ | ★★★ |
| API cost | $ | $$$$ | $$ | Free |
Recommendation: Start with V3.2 for most tasks. Switch to R1 for complex math/code problems.
What is DeepSeek?
DeepSeek is an AI research lab from China building some of the world's most capable open-weight language models. Their flagship models — including DeepSeek-V3R1and the specialized Coder series — have demonstrated performance rivaling top proprietary systemswhile remaining freely accessible to developers worldwide.
Built on efficient Mixture-of-Experts architectureDeepSeek models excel at reasoningcodingmathematicsand multilingual conversations. The company gained global attention in early 2025 when their R1 model matched OpenAI's o1 on key benchmarks — trained at a fraction of the cost.
Why developers choose DeepSeek
Model lineup
What to expect
A cleanfocused interface designed for getting things done.
Clean interface
- No clutterno distractions
- Works on desktoptabletmobile
- Dark mode available
- Conversation history saved locally
Quality answers
- Detailed explanations when needed
- Code with syntax highlighting
- Step-by-step reasoning
- Citations where possible
Common questions
Quick answers to help you get started.