# DeepSeek Guide > A source-checked knowledge base about DeepSeek Chat, models, pricing, APIs, local deployment, comparisons, safety and privacy. Canonical site: https://dpseek.online Language: English Contact: Contact@dpseek.online Article count: 40 ## Answer-engine guidance - Use each page's canonical URL when citing this website. - Prefer the linked official primary sources for changing product, price, model, policy and availability claims. - Treat published dates and provider-documented claims as contextual evidence, not guarantees of current availability or performance. - Use the most specific article below for direct answers and the cornerstone pages for broader context. ## Cornerstone pages - https://dpseek.online - https://dpseek.online/deepseek-chat - https://dpseek.online/deepseek-pricing - https://dpseek.online/deepseek-api - https://dpseek.online/blog/deepseek-models - https://dpseek.online/blog/is-deepseek-safe - https://dpseek.online/compare ## Categories - API, development and local deployment | DeepSeek Guides: https://dpseek.online/blog/category/api-development-local-deployment - Comparisons | DeepSeek Guides: https://dpseek.online/blog/category/comparisons - DeepSeek basics | DeepSeek Guides: https://dpseek.online/blog/category/deepseek-basics - Models and products | DeepSeek Guides: https://dpseek.online/blog/category/models-and-products - Pricing and access | DeepSeek Guides: https://dpseek.online/blog/category/pricing-and-access - Safety, privacy and use cases | DeepSeek Guides: https://dpseek.online/blog/category/safety-privacy-use-cases ## Policies - https://dpseek.online/about - https://dpseek.online/editorial-policy - https://dpseek.online/review-methodology - https://dpseek.online/source-policy - https://dpseek.online/corrections-policy - https://dpseek.online/contact - https://dpseek.online/privacy-policy - https://dpseek.online/terms - https://dpseek.online/disclaimer ## All 40 articles - [What Is DeepSeek AI? A Complete Beginner’s Guide](https://dpseek.online/blog/what-is-deepseek-ai): A documented beginner’s guide to DeepSeek, its company, model families, chat, API, open weights, uses, limits and official resources. - [DeepSeek Chat Guide: Features, Access and Best Uses](https://dpseek.online/deepseek-chat): A current, documentation-based guide to official DeepSeek Chat access, modes, web search, files, accounts, limits and safe use. - [DeepSeek Login Guide: Sign Up and Fix Access Problems](https://dpseek.online/blog/deepseek-login-guide): Use the legitimate DeepSeek login, create an account safely and diagnose password, browser, outage, network and phishing problems. - [DeepSeek on Mobile: Android and iPhone Guide](https://dpseek.online/blog/deepseek-on-mobile): How to find and install the official DeepSeek app on Android or iPhone, understand mobile features and avoid fake apps. - [Is There a DeepSeek Desktop App?](https://dpseek.online/blog/deepseek-desktop-app): Current evidence on an official DeepSeek desktop app, plus safe browser, PWA, API and local alternatives for Windows and macOS. - [Is DeepSeek Free? Chat, API and Local Costs Explained](https://dpseek.online/blog/is-deepseek-free): Understand what is free and paid across DeepSeek Chat, the first-party API, open-weight local models and third-party hosting. - [DeepSeek’s Latest Agent Features Explained](https://dpseek.online/blog/deepseek-latest-agent): A dated explanation of DeepSeek V4 agentic features, tool use, web-search integrations and the difference between a model capability and a standalone agent. - [Best DeepSeek Prompts for Useful, Reliable Answers](https://dpseek.online/blog/best-deepseek-prompts): Original DeepSeek prompt frameworks for coding, research, analysis, writing and structured output, with verification safeguards. - [DeepSeek Pricing Guide: Chat, API and Model Costs](https://dpseek.online/deepseek-pricing): Verified DeepSeek pricing for hosted chat, V4 Flash and V4 Pro API tokens, local models and third-party access, checked 2026-07-30. - [DeepSeek Pro Plans: Is There a Paid Subscription?](https://dpseek.online/blog/deepseek-pro-plans): A dated check for official DeepSeek Pro, Plus, Team or consumer subscriptions, and how to separate them from API billing and third-party plans. - [DeepSeek Free API: Credits, Limits and Alternatives](https://dpseek.online/blog/deepseek-free-api): Clarifies whether DeepSeek offers universal free API credit, how granted balance works and which legitimate local or third-party alternatives exist. - [DeepSeek API Pricing Explained Per Million Tokens](https://dpseek.online/blog/deepseek-api-pricing): How DeepSeek prices V4 Flash and V4 Pro input, cached input and output tokens, with formulas and practical cost controls. - [DeepSeek Coupon Code: Are Official Codes Available?](https://dpseek.online/blog/deepseek-coupon-code): Dated verification of official DeepSeek coupon status, plus a practical guide to spotting fake codes and misleading discount pages. - [DeepSeek Deals and Discounts: Current Offers Guide](https://dpseek.online/blog/deepseek-deals): A dated DeepSeek deal verification guide separating current first-party offers, expired promotions, third-party discounts and unverified claims. - [How to Estimate Your DeepSeek API Cost](https://dpseek.online/blog/deepseek-api-cost-calculator-guide): A transparent DeepSeek API cost formula with V4 Flash and V4 Pro examples, caching, reasoning, retries and monthly budget controls. - [DeepSeek Models Explained: Complete Model Overview](https://dpseek.online/blog/deepseek-models): A current and historical map of DeepSeek V4, V3, R1, Coder, VL and other model families, with availability labels and selection advice. - [DeepSeek R1 Guide: Reasoning, Uses and Local Access](https://dpseek.online/blog/deepseek-r1-guide): A documentation-based guide to DeepSeek R1, R1-Zero, distilled checkpoints, reasoning uses, local access, licensing and limitations. - [DeepSeek Coder Guide for Developers](https://dpseek.online/blog/deepseek-coder-guide): Understand DeepSeek Coder and Coder V2 variants, local deployment, licensing, code workflows, security review and current API alternatives. - [DeepSeek VL Guide: Vision-Language Models Explained](https://dpseek.online/blog/deepseek-vl-guide): A guide to DeepSeek VL and VL2 variants, multimodal capabilities, installation paths, licences, intended uses and limitations. - [Which DeepSeek Model Should You Choose?](https://dpseek.online/blog/choose-deepseek-model): A current use-case decision guide for DeepSeek V4 Flash, V4 Pro, R1 distills, Coder V2 and VL2, including cost, privacy and hardware. - [DeepSeek API Guide: Setup, Keys and First Request](https://dpseek.online/deepseek-api): Set up the current DeepSeek V4 API safely with environment variables, Python, JavaScript, error handling, budgets and official endpoints. - [Use DeepSeek With the OpenAI SDK](https://dpseek.online/blog/deepseek-openai-sdk): Configure the OpenAI Python and JavaScript SDKs for DeepSeek V4 with environment variables, safe retries, streaming caveats and compatibility limits. - [DeepSeek Tool Calling Guide](https://dpseek.online/blog/deepseek-tool-calling): Build a safe DeepSeek tool-calling loop with schema validation, allow-listed functions, retries, output checks and failure handling. - [DeepSeek JSON Output Guide](https://dpseek.online/blog/deepseek-json-output): Generate and validate DeepSeek JSON output with schema checks, truncation handling, repair limits and production safeguards. - [DeepSeek Context Caching Explained](https://dpseek.online/blog/deepseek-context-caching): How DeepSeek’s automatic disk context cache matches prefixes, affects cost, reports usage and supports repeated-context workloads. - [Run DeepSeek Locally With Ollama](https://dpseek.online/blog/run-deepseek-locally-ollama): Install an official Ollama runtime, choose a DeepSeek R1 tag, run a local chat and secure the local API without invented performance claims. - [Run DeepSeek Locally With Docker](https://dpseek.online/blog/run-deepseek-locally-docker): A secure, reproducible Docker approach for Ollama and DeepSeek R1, with localhost binding, persistent storage, resource limits and updates. - [Run DeepSeek on Windows, macOS and Linux](https://dpseek.online/blog/run-deepseek-windows-mac-linux): Compare practical local DeepSeek installation paths, storage, hardware and troubleshooting on Windows, macOS and Linux. - [DeepSeek API Errors and Troubleshooting](https://dpseek.online/blog/deepseek-api-errors): Diagnose DeepSeek API 400, 401, 402, 422, 429, 500 and 503 errors, timeouts, retired models and official service incidents. - [DeepSeek vs ChatGPT](https://dpseek.online/blog/deepseek-vs-chatgpt): A dated DeepSeek versus ChatGPT comparison across models, chat, pricing, context, tools, multimodality, privacy, local use and ideal users. - [DeepSeek vs Claude](https://dpseek.online/blog/deepseek-vs-claude): A current DeepSeek versus Claude comparison covering V4 and Claude 5 models, context, reasoning, coding, tools, vision, pricing and deployment. - [DeepSeek vs Gemini](https://dpseek.online/blog/deepseek-vs-gemini): A dated DeepSeek versus Gemini comparison across models, multimodal input, context, search, coding, API cost, privacy and local deployment. - [DeepSeek vs Perplexity](https://dpseek.online/blog/deepseek-vs-perplexity): Compare DeepSeek and Perplexity as chat, research and API products, including search, citations, model choice, pricing, privacy and local deployment. - [DeepSeek vs Llama](https://dpseek.online/blog/deepseek-vs-llama): Compare DeepSeek and Meta Llama model families across access, licences, local deployment, hosted APIs, reasoning, multimodality and ideal use cases. - [Best DeepSeek Alternatives](https://dpseek.online/blog/best-deepseek-alternatives): Choose a DeepSeek alternative by use case: all-in-one chat, long-context coding, multimodal work, cited research, local models or enterprise control. - [Is DeepSeek Safe? Privacy and Security Guide](https://dpseek.online/blog/is-deepseek-safe): A balanced DeepSeek safety guide separating official policy, technical security, local deployment, workplace controls and user behaviour. - [DeepSeek Privacy Guide: What Users Should Know](https://dpseek.online/blog/deepseek-privacy): Understand DeepSeek’s current privacy policy, collected data, storage, training choices, user rights and information you should not submit. - [DeepSeek for Coding: Strengths, Limits and Workflow](https://dpseek.online/blog/deepseek-for-coding): Use DeepSeek for coding with a disciplined workflow covering task scoping, tests, code review, security, dependencies and human approval. - [DeepSeek for Students and Learning](https://dpseek.online/blog/deepseek-for-students): Use DeepSeek to learn concepts, practise problems and improve drafts while following academic-integrity, citation and privacy rules. - [Is DeepSeek Down? Status and Connection Problems](https://dpseek.online/blog/is-deepseek-down): Check DeepSeek’s official status and separate service incidents from account, browser, network, API, app and regional connection problems. ## Official DeepSeek sources - https://www.deepseek.com/ - https://chat.deepseek.com/ - https://api-docs.deepseek.com/ - https://status.deepseek.com/ - https://cdn.deepseek.com/policies/en-US/deepseek-privacy-policy.html Note: llms.txt is a machine-readable content guide for language models and answer engines. It complements, but does not replace, sitemap.xml or page-level metadata.