DeepSeek Chat
Mixture of Experts chat model with an OpenAI compatible APIFree to use chat with strong reasoning and coding skills
Highlights
What you can do with it
- Chat for knowledge, math, reasoning, and programming questions
- Power smart customer service with natural language processing
- Act as a programming assistant for developers
- Support personalized learning in educational platforms
How to use it
- 1 Visit the DeepSeek website or open the API interface
- 2 Register an account to get started, including a trial quota for the API
- 3 Pick the chat site for direct conversation or the API for integration
- 4 For API use, write code against the OpenAI compatible interface
- 5 Test and optimize against the documentation, then review token pricing as usage grows
Who it is for
Pros
- Strong evaluation results cited for knowledge, math, and coding
- Long context support, with 128K on open source models
- OpenAI compatible API reduces migration work
- The chat website is listed as free to use
Limitations
- The chat site being free does not extend to API usage, which is billed
- Trial quotas and token pricing are set by the official site and can change
- Self hosting the open source model requires real hardware and skill
- Benchmark results are claims from the listing, so test on your own tasks
What DeepSeek Chat is
DeepSeek Chat is a chat product from DeepSeek, built on a Mixture of Experts model. According to its description, the model performs strongly in capability evaluations, including AlignBench for Chinese and MT Bench for English, where it is said to rank alongside closed source models such as GPT-4 Turbo. The listing cites strong results in knowledge, mathematics, reasoning, and programming, and it notes long context support: 128K on the open source models and 32K on the chat website and API. The chat site is listed as free to use. For developers, the API is compatible with OpenAI interfaces, which makes it easier to plug into existing code, while new accounts get a trial quota before usage is billed.
What you can do with it
- Chat about knowledge, math, reasoning, and programming problems.
- Use it as a programming assistant while writing or debugging code.
- Add natural language processing to a smart customer service system.
- Build personalized learning advice into an educational platform.
Who it is for
- Developers who want help with coding and algorithmic problems.
- Companies adding intelligent dialogue and data processing to their systems.
- Research institutions working on complex analysis and knowledge reasoning.
- Education teams building tutoring and personalized learning experiences.
What to watch out for
The chat website being free to use does not mean the API is free: the listing describes a trial quota for new accounts, after which token usage is billed, and both trial terms and pricing are set by the official site and can change. The evaluation results in the listing are claims about benchmark performance, so run your own tests on the tasks you actually care about before committing. If you self host the open source model for 128K context, you need suitable hardware and the skills to run it. Finally, generated answers can still be wrong, so verify important outputs rather than trusting them because benchmarks look strong.
FAQ
Is DeepSeek Chat free?
The listing says the chat website is free to use. The API offers a trial quota for new accounts, then bills by usage, with terms set by the official site.
What is the context length?
The listing states 128K context for open source models and 32K for the chat website and API.
Can I use it with OpenAI style code?
Yes. The description highlights compatibility with OpenAI API interfaces.
Who is it aimed at?
The audience list includes developers, companies, research institutions, and education.
Why it is free
What the official page says: free to use
Free limits, trial length and features are decided by the official site and can change at any time.
Product preview
Screenshot archived from the listing page, for preview only.