DeepSeek vs ChatGPT

The short answer

Pick ChatGPT for the complete package and data handling you can take to work; pick DeepSeek for strong reasoning at zero cost or an API priced far below its rivals. DeepSeek's app is entirely free, while ChatGPT runs from free with ads to $20/mo for Plus. The Overlord's advice: DeepSeek for public problems and cheap tokens, ChatGPT for anything confidential.

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DeepSeekChatGPT
Overlord Score7.6/109.2/10
Best forDevelopers who need cheap API tokens at scale, Math, reasoning and coding questions on a zero budgetEveryday writing, brainstorming and editing, People who want one AI subscription that does everything
Starting priceFree$8/mo
Free planYesYes
PricingApp is free with no paid tier; API from $0.30 in / $1.20 out per million tokens at peak, half that off-peak.Free; Go $8/mo (US, with ads); Plus $20/mo; Pro $100, $200 or $500/mo.
Data and privacyData stored in China; banned on government devices in several countries and US states.US company with business and enterprise data controls.
FeaturesText chat, thinking mode, web search and file uploads; no image generation.Image generation, voice, custom GPTs, agents and Codex.
API costAmong the cheapest capable APIs, with half-price off-peak hours.Usage-based; flagship models cost several times more per token.
CensorshipDeflects topics sensitive to the Chinese government.Standard safety filters.
Open weightsPublishes open model weights you can self-host.Closed models in ChatGPT.

DeepSeek or ChatGPT: which should you choose?

Choose DeepSeek if…

Choose DeepSeek if you want a capable free assistant for math, reasoning and code, or you are a developer who needs very cheap API tokens.

Try DeepSeek →

Choose ChatGPT if…

Choose ChatGPT if you want images, voice, agents and coding in one place, or you handle work data that cannot be stored in China.

Try ChatGPT →

DeepSeek vs ChatGPT pricing

DeepSeek

  • Chat app Free
  • API: deepseek-flash $0.30 in / $1.20 out per 1M tokens
  • API: deepseek-v4-pro $1.32 in / $3.96 out per 1M tokens

Yes. The DeepSeek chat app on web, iOS and Android is free with no paid consumer tier. Only the developer API costs money, billed per token.

Full DeepSeek pricing →

ChatGPT

  • Free Free
  • Go $8/mo
  • Plus $20/mo
  • Pro 100 $100/mo
  • Pro 200 $200/mo
  • Pro 500 $500/mo
  • Business $25/user/mo
  • Business Premium seat $125/user/mo
  • Enterprise Custom

Yes. ChatGPT Free covers everyday chat, web search, file uploads and some image generation with tighter limits, and shows ads to logged-in adults in the US and other rollout markets. An ad-free Free option exists with lower limits.

Full ChatGPT pricing →

Strengths and weaknesses

DeepSeek

Frontier-adjacent intelligence for free, with the API priced like a rounding error. The catch is where your words go: DeepSeek stores them in China, and several governments have banned it from official devices. Fine for public problems; keep the secrets for someone else.

Strengths

  • Free app with no paid tier to upsell you
  • API is a fraction of the price of US rivals
  • Strong at reasoning and code for the money

Weaknesses

  • Data is stored in China, which rules it out for many workplaces
  • Banned on government devices in several places, including Australia, South Korea, Taiwan, Texas and US federal agencies; Italy's regulator blocked it
  • Hosted versions avoid or deflect topics sensitive to the Chinese government
  • Fewer extras than ChatGPT: no image generation or big plugin ecosystem
Read the full DeepSeek review →

ChatGPT

The default AI for most of the Obsolete, and it got there by being good at nearly everything. Pay for Plus if you use it daily. The free and Go tiers now come with ads in the US.

Strengths

  • Widest feature set of any consumer AI
  • Huge ecosystem of GPTs, guides and integrations
  • Usable free tier

Weaknesses

  • Free and Go tiers show ads in the US
  • Plan lineup and usage limits change often
  • Prose defaults to a recognizable house style unless you push it
Read the full ChatGPT review →

Questions the Humans Keep Asking

Is DeepSeek better than ChatGPT?

DeepSeek is competitive on reasoning and code and costs nothing in the app. ChatGPT has far more features and clearer data protections, so it is the better all-round choice.

Is DeepSeek safe to use?

Its privacy policy says data is stored in China, and several governments have banned it on official devices. Avoid putting confidential or personal information into the hosted app.

Is DeepSeek really free?

Yes. The web and mobile app have no paid tier. Only the developer API is billed, per million tokens.

More head-to-heads