AI Guide
DeepSeek Models: Full List, Features & Use Cases
Chat with DeepSeek V4 Pro
DeepSeek V4 Pro, DeepSeek's most capable AI model, brings step-by-step problem solving and broad knowledge to Chat Smith.
Meet DeepSeek V4 Pro in Chat Smith
Try NowDeepSeek V4 Pro is the flagship model in DeepSeek's V4 series, and you can now use it in Chat Smith, an all-in-one AI chat platform that brings top models together in one place. It's known for strong reasoning and a broad base of knowledge, making it a great pick for homework, research questions, and problems you want to work through carefully. No separate DeepSeek account is needed, just open Chat Smith, select DeepSeek V4 Pro from the model list, and start chatting right away.
Solve Math and Science Problems Step by Step
Try NowDeepSeek V4 Pro shines on problems with a clear right answer. Ask it to solve an equation, balance a chemical reaction, or work through a physics question, and it shows every step so you can follow the logic and spot where you went wrong. You can ask it to slow down or try a different method until it makes sense. For dedicated help with numbers, the AI math solver walks you through each problem. Chemistry homework goes smoother with the AI chemistry solver by your side.
A Deep Well of General Knowledge
Try NowDeepSeek V4 Pro knows a lot about a lot, from world history and economics to art, science, and culture. Ask it to explain why an empire fell, how inflation works, or what makes a famous painting important, and it gives you a clear, well-organized answer you can build on. To get the main ideas of a book before you dive in, the AI book summarizer gives you the highlights. Short on time for a long lecture video? The YouTube summarizer pulls out the key points.
Think Through Tough Questions
Try NowSome problems need careful thought, and DeepSeek V4 Pro takes the time to reason them through. Give it a tricky logic puzzle, a scheduling problem with lots of constraints, or a comparison with many moving parts, and it breaks the challenge into pieces before landing on an answer. You can see how it got there and push back if something doesn't add up. When you're stuck on where to even begin, the AI idea generator gives you fresh angles to explore.
Switch to DeepSeek V4 Pro in a Single Tap
DeepSeek V4 Pro is one of several AI models inside Chat Smith, and switching to it takes a single tap, no new app or extra login required. Use it for step-by-step problem solving, hand long, careful writing to Claude Sonnet 5, or try GPT-5 for quick everyday help, all inside the same thread with your history intact. That makes it easy to match the right model to the moment, and DeepSeek V4 Pro is always one tap away.
Multiple Models, One Platform
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Multiple Models
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Easy Comparison
Compare responses across different models to find the best answer for every task.
One Workspace
Chat, write, research, and create with your favorite AI models in a single app.
Just 3 Simple Steps
Chat with an advanced AI assistant to get answers, solve problems, generate content, and explore ideas in seconds.
Step 1
Enter a question, task, or topic you'd like help with, and provide any details or context that may be relevant.
Step 2
The AI analyzes your request and generates accurate, relevant, and context-aware responses in real time.
Step 3
Continue the conversation, refine your instructions, and explore new ideas through natural back-and-forth interactions.
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Ask Us Anything
What is DeepSeek V4 Pro?
DeepSeek V4 Pro is a high-capability large language model developed by DeepSeek AI, available through Chat Smith. It is a frontier-level model recognized for its exceptional performance on reasoning, mathematics, science, and coding tasks — delivering results that benchmark competitively with leading global AI models at a highly efficient inference cost. DeepSeek V4 Pro is designed for users who need strong analytical and technical capability in a powerful, versatile AI assistant.
How does DeepSeek V4 Pro differ from earlier DeepSeek models?
DeepSeek V4 Pro represents a significant generational advancement over previous DeepSeek releases, with improvements in reasoning depth, instruction-following accuracy, coding proficiency, and general knowledge breadth. It incorporates architectural innovations that enable strong performance with greater inference efficiency compared to earlier versions — delivering a better balance of capability and speed for demanding professional use cases.
What tasks is DeepSeek V4 Pro best suited for?
DeepSeek V4 Pro excels at technically demanding tasks including complex mathematical reasoning and problem-solving, advanced coding and algorithm design, scientific analysis and research synthesis, structured logical argumentation, data interpretation, technical writing, and multi-step question answering. It is particularly strong in STEM-related tasks and performs competitively across general language and reasoning benchmarks.
How good is DeepSeek V4 Pro at mathematics and scientific reasoning?
DeepSeek V4 Pro is one of the strongest available models for mathematical and scientific reasoning, benchmarking at a competitive level with leading frontier models on tasks like competition mathematics, physics problems, and scientific research comprehension. It can work through multi-step quantitative problems, apply formal logical frameworks, and produce well-structured, accurate technical explanations suitable for academic and professional contexts.
How does DeepSeek V4 Pro perform on coding tasks?
DeepSeek V4 Pro is an exceptional coding model that performs strongly across all major programming languages and paradigms. It generates production-quality code, designs complex algorithms and data structures, reviews and debugs codebases, writes comprehensive documentation, and explains technical implementations clearly. Its coding benchmarks are competitive with the best global coding models, making it an excellent choice for developers and engineering teams.
Can DeepSeek V4 Pro handle long documents and complex multi-turn conversations?
Yes. DeepSeek V4 Pro supports a large context window that allows it to process, reference, and reason over extensive text within a single session. This makes it well-suited for summarizing long technical documents, maintaining coherence across extended technical dialogues, analyzing research papers, reviewing lengthy codebases, and working through complex multi-step professional workflows.
How does DeepSeek V4 Pro compare to GPT-5 and Claude Opus?
DeepSeek V4 Pro benchmarks competitively with leading frontier models including GPT-5 and Claude Opus on reasoning, coding, and mathematics tasks. It is particularly noteworthy for delivering frontier-level performance with greater inference efficiency. While each model has distinct strengths — GPT-5 excels in multimodal tasks and general knowledge, Claude Opus in long-form writing depth and safety alignment — DeepSeek V4 Pro is a compelling choice for STEM-heavy, analytical, and coding-intensive workflows.
How can I get the best results from DeepSeek V4 Pro?
Provide detailed, well-structured prompts that clearly define the task, relevant constraints, desired output format, and any specific technical requirements. For mathematical or scientific problems, state all given variables and describe the expected approach. For coding tasks, specify the language, framework, performance requirements, and edge cases. DeepSeek V4 Pro performs best when given precise, technically complete instructions.
Is DeepSeek V4 Pro available for free on Chat Smith?
Chat Smith offers access to DeepSeek V4 Pro on applicable plans. Given its frontier-level capability, it may be available on paid plans or with usage limits on free tiers. Check the Chat Smith plans page for the most current details on model availability and usage allocations for your account type.
Does DeepSeek V4 Pro support multiple languages?
Yes. DeepSeek V4 Pro performs well across multiple major languages. It has particularly strong performance in English and Chinese, given DeepSeek AI's origins, and handles Spanish, French, German, Japanese, Korean, Arabic, Portuguese, Hindi, and other major languages with solid capability for writing, reasoning, translation, and analysis tasks.
Is DeepSeek V4 Pro safe and aligned?
DeepSeek V4 Pro is developed with safety and alignment considerations incorporated into its training process. It applies content moderation, declines harmful requests, and is designed to produce helpful, accurate, and responsible outputs. Chat Smith also applies its own content moderation and safety policies when serving DeepSeek V4 Pro through the platform, providing an additional layer of responsible AI deployment.
Who develops DeepSeek V4 Pro and why is it significant?
DeepSeek V4 Pro is developed by DeepSeek AI, a Chinese AI research company that has attracted significant global attention for producing frontier-level models with remarkable computational efficiency. DeepSeek's approach to model training has demonstrated that world-class AI performance can be achieved with innovative architecture and training techniques — positioning DeepSeek V4 Pro as an important and competitive option in the global large language model landscape available through Chat Smith.