DeepSeek
Open-weight reasoning models from China with free chat access.
Open-weight reasoning models from China with free chat access.
DeepSeek is Open-weight reasoning models from China with free chat access. Free to use.
About DeepSeek
DeepSeek is a Chinese AI lab that has become known for releasing high-performing open-weight large language models at a fraction of the cost of Western frontier labs. Its flagship line includes the DeepSeek V series for general chat and the DeepSeek R reasoning models, with DeepSeek V3 and R1 widely benchmarked against GPT-4 class systems and DeepSeek V4 introducing improved agent abilities. The hosted chat product at chat.deepseek.com is free and offers web search and a 'DeepThink' reasoning toggle, while developers can call the same models through a low-priced API or download weights from GitHub and Hugging Face for self-hosting. DeepSeek also publishes specialized variants for coding, math and vision-language. The combination of permissive licensing, transparent technical reports and aggressive pricing has made it a default option for researchers, indie developers and cost-sensitive enterprises.
DeepSeek pros and cons
Hand-derived from the catalog data, strengths and trade-offs to weigh before signing up.
- Completely free to use, no paid tier required
- DeepSeek V4 & R1 reasoning
- Open weights
- Web search
- No autonomous agent, handles single prompts, not multi-step workflows
- Competition is strong in this space, see Kimi and Gemini for comparison
2 plans from DeepSeek
Pulled from DeepSeek’s public pricing page. Prices may change, verify on the vendor’s site before purchasing.
Free Chat
Free access via chat
- Unlimited chat access
- DeepSeek V3 and R1 models
- Web search
API (pay-as-you-go)
Pay-per-use API access
- DeepSeek V3 input: $0.27/M
- DeepSeek R1 reasoning model
- Cache discounts available
- Off-peak pricing discount
DeepSeek vs Chat & Assistants
Side-by-side with the top 3 other chat & assistants in this category.
| Picked from the top tools in chat & assistants | Open-weight reasoning models from China with free chat access. | Moonshot AI's assistant, powered by the 2.8T open-weight Kimi K3 model. | Google's multimodal AI integrated with Workspace and real-time search. | OpenAI's flagship conversational AI for writing, reasoning, and analysis. |
|---|---|---|---|---|
| STARTS AT | Free | Free chat; API from $3 / 1M tokens | $19.99/mo | $20/mo |
| PRICING | Free | Freemium | Freemium | Freemium |
| AI AGENT | No | Yes | Yes | Yes |
| EDITOR'S PICK | No | No | No | Yes |
| KEY FEATURES | DeepSeek V4 & R1 reasoning, Open weights, Web search | 2.8T-param open-weight MoE (16 of 896 experts active), 1M-token context window, Native multimodal (vision) | Gemini 3.8 Flash & 3 Pro models, Workspace integration, Deep Research | GPT-6 Astra + GPT-5.6 tiers, Advanced Voice Mode, Code interpreter |
| BEST FOR | Math, Coding, Reasoning | Long-document analysis (1M context), Coding & front-end generation, Self-hosted / private deployments | Workspace tasks, Research, Image understanding | Brainstorming, Writing, Research |
| WORKS WITH | #chatbot#reasoning#open-source | #chat#open-source#reasoning#long-context | #chatbot#multimodal#google | #chatbot#reasoning#assistant |
DeepSeek, frequently asked questions
What is DeepSeek?
Is DeepSeek free?
What are the key features of DeepSeek?
What can DeepSeek be used for?
What are the best alternatives to DeepSeek?
Is DeepSeek better than Kimi?
What are the pros and cons of DeepSeek?
Related tools
Moonshot AI's assistant, powered by the 2.8T open-weight Kimi K3 model.
Google's multimodal AI integrated with Workspace and real-time search.
OpenAI's flagship conversational AI for writing, reasoning, and analysis.
Alibaba's open-source Qwen models in a free chat interface.