ChatGPT vs DeepSeek

Side-by-side comparison of features, pricing, and ratings

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At a glance

DimensionChatGPTDeepSeek
PricingFreemium (Free tier; Plus $20/mo, Pro $200/mo)Completely free
Best ForAnyone needing quick, human-like text responses; creators; professionals; first-time AI usersDevelopers needing free API; researchers; programmers; math enthusiasts
Key FeaturesVoice input/response, image creation/upload, deep research mode, tailored past chat responsesDeepSeek-V4 preview, R1 reasoning model, Coder, Math, API documentation, agent capability
Language SupportMultilingual text chatEnglish and Chinese only
Specialized ModelsNone announcedSeparate models for code, math, reasoning, general
Data PrivacyChats may be reviewedChinese-based privacy standards

If you want a polished, multimodal assistant with voice and image features, go with ChatGPT. If you need free, cutting-edge reasoning and specialized coding/math models, DeepSeek is unbeatable — but be aware of its limited language support and Chinese data policies.

ChatGPT
ChatGPT

ChatGPT: AI assistant for writing, coding, image gen, and voice.

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DeepSeek
DeepSeek

Free chat + cost-efficient API for top-tier reasoning AI

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Pricing
Freemium
Freemium
Plans
$0/mo
$0/mo
$20/mo
$200/mo
$0/mo
Usage-based
Popularity
5.6k views
4.0k views
Skill Level
Beginner-friendly
Intermediate
API Available
Platforms
WebMobileDesktopAPI
WebAPI
Categories
💻 Code & Development✍️ Writing & Content🎨 Image Generation
💻 Code & Development🔬 Research & Education
Features
GPT-5.5 Instant, Thinking, and Pro models
Text, image, and voice conversations
Voice conversations with video
Real-time web browsing (paid plans)
File upload support (images, PDFs, spreadsheets)
Code interpretation and execution
Deep research mode
Agent mode (Atlas)
Customizable instructions and memory
Projects, tasks, and custom GPTs
DALL·E image generation
Group chats and shareable links
Shopping mode
Mobile app (iOS, Android)
Desktop app (macOS, Windows)
DeepSeek V4 Pro beats GPT-5.5 Pro on precision
Permanent 75% discount on V4 Pro API pricing
DeepSeek V4-Flash for advanced LLM steering
Reasonix native coding agent with high cache efficiency
Free web chat interface with no account required
Free mobile app for iOS and Android
Pay-as-you-go API with transparent pricing
Low-latency inference for real-time applications
High context window support across V4 series
Vision feature for image recognition in chat
Openness to community reproductions (e.g., R1 by Hugging Face)
Integrations
Slack
Google Drive
Microsoft 365
GitHub
Linear
Figma
Canva
Spotify
Zapier
RESTful API

Feature-by-feature

ChatGPT offers a comprehensive assistant experience: voice input/output, image creation and upload, saved chat history, deep research mode, and multilingual support. It tailors responses based on past conversations, making it highly personalized. DeepSeek, by contrast, focuses on raw reasoning power and specialized models. It provides four distinct models: DeepSeek-V4 preview (top reasoning with agent capability), DeepSeek R1 (reasoning), DeepSeek V3 (general), DeepSeek Coder (code), and DeepSeek Math (mathematical reasoning). This modular approach allows switching models based on the task, which ChatGPT lacks. However, DeepSeek only supports English and Chinese, whereas ChatGPT supports multiple languages. Both offer file upload and chat history, but ChatGPT's deep research mode and image capabilities are absent in DeepSeek. DeepSeek's API access is fully free, while ChatGPT's API is paid. For developers, DeepSeek's dedicated Coder and Math models provide optimized performance for those domains.

Pricing compared

ChatGPT operates on a freemium model with a free tier limited to GPT-3.5; Plus costs $20/month for GPT-4, DALL-E, and browsing; Pro is $200/month for unlimited. DeepSeek is entirely free with no paid tiers — users get free access to all models (V4 preview, R1, V3, Coder, Math) via web, app, and API with documentation. This makes DeepSeek a compelling alternative for cost-conscious users, especially developers who need API integration without per-token costs. However, ChatGPT's paid tiers offer features like image generation and deep research. If you need multimodal AI and can pay, ChatGPT is the clear choice. If you want state-of-the-art reasoning and code/math models at zero cost, DeepSeek wins hands down.

Who should pick which

  • Developer building an AI-powered app
    Pick: DeepSeek

    DeepSeek provides free API access with specialized Coder and Math models, making it ideal for integration and cost-saving.

  • Content creator needing image generation
    Pick: ChatGPT

    ChatGPT’s DALL-E integration allows image creation directly in chat, a feature DeepSeek lacks.

  • Student requiring multilingual assistance
    Pick: ChatGPT

    ChatGPT supports multiple languages, while DeepSeek only handles English and Chinese.

  • Math researcher solving complex problems
    Pick: DeepSeek

    DeepSeek Math is designed for mathematical reasoning, offering specialized performance.

  • Casual user wanting a free, powerful AI
    Pick: DeepSeek

    DeepSeek is completely free with no limits, providing advanced models without any cost.

Frequently Asked Questions

Which is cheaper: ChatGPT or DeepSeek?

DeepSeek is completely free, while ChatGPT offers a free tier but requires payment for advanced features (Plus $20/mo, Pro $200/mo).

Does DeepSeek support image generation?

No, DeepSeek does not offer image generation. ChatGPT does via DALL-E integration.

Can I use DeepSeek for voice input?

No, DeepSeek does not have voice input/output. ChatGPT supports both.

Which AI is better for coding tasks?

DeepSeek Coder is specifically designed for code, making it the better choice for developers. ChatGPT can also code but lacks a dedicated model.

Are ChatGPT conversations private?

OpenAI may review chats for improvement. DeepSeek is based in China with different data privacy standards.

Does DeepSeek have a paid plan?

No, DeepSeek is entirely free with no paid tiers.

Which model has better reasoning capabilities?

DeepSeek’s V4 preview and R1 model are benchmarked for top reasoning. ChatGPT’s GPT-4 is also strong but not free.

Can I use both ChatGPT and DeepSeek?

Yes, you can use them for different tasks: ChatGPT for multimodal and language, DeepSeek for reasoning and specialized domains.

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