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ChatGPT vs DeepSeek

ChatGPT is a general-purpose OpenAI assistant built around chat for questions, writing, coding, and research. It has a free tier and paid plans from $8 a month that add more capable models, higher limits, uploads, browsing, voice, and image generation. It runs on web, iOS, Android, and an API. DeepSeek is a free assistant from a Chinese lab, built around reasoning and coding, with a web app, mobile apps, and a usage-based API. Its chat tier is free, offers an extended reasoning mode and long context, and has no built-in web search in the standard interface. DeepSeek notes Chinese data laws may apply.

Which to choose

Choose ChatGPT if you want a general-purpose assistant for everyday questions, writing, coding, research, and working with files, images, voice, or web browsing across web and mobile apps.

Visit chat.openai.com

Choose DeepSeek if you want a free assistant focused on coding and extended reasoning over complex problems and are comfortable with a service operated by a Chinese company.

Visit chat.deepseek.com

Side by side

DetailChatGPTDeepSeek
What it isOpenAI's AI assistant for questions, writing, coding and research, with a free tier and paid plans for more capable models.DeepSeek's free AI assistant with strong reasoning and coding capabilities, available on the web and mobile.
PricingFree tierFree
Paid plans from$8 per month—
Free planYesYes
Free trialNoNo
PlatformsWeb, iOS, Android, APIWeb, iOS, Android, API
APIYesYes
Checked against its siteNot yetNot yet
Features
  • Multi-model chat with multiple capability and speed tiers
  • Web browsing and live search
  • Code writing and execution in a sandbox
  • Image generation built in
  • Voice conversation mode
  • File and image uploads
  • Custom instructions and persistent memory
  • User-created custom GPT marketplace
  • Extended chain-of-thought reasoning mode
  • Code generation and debugging
  • File and document uploads
  • Long context window
  • Usage-based API for developers

Written by AIToolMaps from the two listings, which come from each tool's official site. Full details: ChatGPT · DeepSeek.