Chat Assistants · Head to head

ChatGPT vs DeepSeek

Features, pricing, strengths and trade-offs — and which one fits your situation.

The verdict

Editor’s verdict

ChatGPT is a full-featured assistant with images, voice, agents and integrations, while DeepSeek is a free chatbot focused on text reasoning and coding. Choose ChatGPT if you need image generation, voice conversations, deep research, custom GPTs or plugins, code execution for data analysis, or connections to tools like Google Drive and Slack. Choose DeepSeek if you mainly want strong free reasoning and coding help, a very long context window without paying, or open-weight models you can self-host or call through a low-cost API. For most everyday users who want more than text answers, ChatGPT is the more complete product. DeepSeek processes data on servers in China and filters politically sensitive topics, which rules it out for some organizations. If you want DeepSeek-style value but with European hosting, Mistral Le Chat is an alternative to consider.

Both ChatGPT and DeepSeek offer a free plan, so you can try each before paying.

Which should you choose?

ChatGPT logo

Choose ChatGPT if…

  • You need an all-round assistant covering writing, coding, research, images and voice in one app
  • Image generation matters to you
  • Voice conversations matters to you
  • Custom assistants / GPTs matters to you
  • You're one of: general consumers and students, knowledge workers, developers
Try ChatGPT free
DeepSeek logo

Choose DeepSeek if…

  • You need free, strong reasoning and coding help without a subscription
  • You're one of: budget-conscious students, developers wanting a cheap api, teams able to self-host open models
  • Consumer app is free with no paid tier needed
Try DeepSeek free

At a glance

ChatGPTDeepSeek
Best forAn all-round assistant covering writing, coding, research, images and voice in one appFree, strong reasoning and coding help without a subscription
Free planYesYes
Starting priceFrom $5Free
Learning curveLowLow
PlatformsWeb, Windows, macOS, iOS, Android, Chrome extension, APIWeb, iOS, Android, API
Ideal forGeneral consumers and students, Knowledge workers, Developers, Small businessesBudget-conscious students, Developers wanting a cheap API, Teams able to self-host open models

Feature comparison

ChatGPTDeepSeek
Web search with sourcesYesYes
Image generationYesNo
Voice conversationsYesNo
File & PDF analysisYesYes
Custom assistants / GPTsYesNo
Runs code / data analysisYesNo
Deep research modeYesNo
Mobile appsYesYes
Developer APIYesYes
IncludedLimited / higher plansNot available— Not confirmed

Security & enterprise

ChatGPTDeepSeek
Business / enterprise planYesNo
SSO (SAML / OIDC)Business & Enterprise—
SCIM user provisioningEnterprise plan—
SOC 2Type II—
ISO 27001Yes—
HIPAA (BAA available)Enterprise (BAA)—
GDPR DPAYes—
Data residency optionsUS, EU, UK, JP, IN, AU +more—
No training on your dataYes—
Audit logsEnterprise (Compliance API)—
Admin controlsYes—
DeploymentCloud—

From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools

What each tool does

ChatGPT logoChatGPT

ChatGPT is OpenAI's general-purpose AI assistant, available on web, desktop and mobile. It combines chat with web search, file and data analysis, image generation, voice conversations, deep research and an agent mode that can use a browser and connected apps. It is the most widely used consumer chatbot and is used by individuals, students and businesses.

Key features
  • Web search with inline source citations
  • Deep research that produces cited reports from the web, files and connected apps
  • Native image generation and editing
  • Advanced voice mode with real-time conversation
  • Agent mode that operates a browser and connected apps
  • Projects, memory and custom GPTs / plugins

DeepSeek logoDeepSeek

DeepSeek is a chatbot from the Chinese AI company of the same name, built on its open-weight V-series models (V4 as of 2026). The consumer app is free and offers a reasoning mode (DeepThink), web search, file reading and a very long context window. Developers use its low-cost API or run the open weights themselves.

Key features
  • DeepThink reasoning mode that shows step-by-step thinking
  • Web search toggle with linked sources
  • Upload documents and images for text extraction and analysis
  • Up to 1M-token context in the app
  • Open-weight models that can be self-hosted
  • Low-cost pay-as-you-go API

Pricing

ChatGPT logoChatGPT

From $5Free plan

Free plan: yes; Go ~$5-8/mo, Plus $20/mo, Pro $200/mo

DeepSeek logoDeepSeek

FreeFree plan

Free plan: yes (chat app is free); API pay-as-you-go, no consumer subscription

Prices last checked September 2026. Plans change often — confirm on each vendor's site.

Pros and cons

ChatGPT logoChatGPT

Strengths
  • Broadest feature set of any consumer chatbot
  • Free plan includes search, image generation and voice with limits
  • Large ecosystem of connected apps and third-party plugins
  • Polished apps on every major platform
Limitations
  • Best models and higher limits require paid plans; free tier hits caps quickly
  • Free and low-cost tiers show ads in some regions
  • Custom GPTs are being migrated to plugins, so older setups may need rework
  • Can state incorrect facts confidently, so citations need checking

Not ideal for: Users who need strict data residency or want to avoid a US-based provider should consider alternatives such as Mistral Le Chat.

DeepSeek logoDeepSeek

Strengths
  • Consumer app is free with no paid tier needed
  • Strong reasoning, math and coding performance
  • Open weights allow private self-hosting
  • API is inexpensive for developers
Limitations
  • No image generation or native voice conversations
  • No custom assistants, deep research agent or code-running sandbox in the app
  • Data is processed on servers in China, which some organizations and governments restrict
  • Answers on politically sensitive topics are filtered

Not ideal for: Businesses with strict data-sovereignty rules or anyone who needs images, voice or agent features should use another assistant.

Integrations

ChatGPT logoChatGPT

Google DriveMicrosoft OneDriveSharePointGmailSlackGitHub

DeepSeek logoDeepSeek

No notable integrations listed

FAQ

What is the main difference between ChatGPT and DeepSeek?

ChatGPT is built for an all-round assistant covering writing, coding, research, images and voice in one app; DeepSeek is built for free, strong reasoning and coding help without a subscription. Key differences: ChatGPT offers image generation, voice conversations, custom assistants / GPTs, runs code / data analysis and deep research mode.

Is ChatGPT or DeepSeek cheaper?

ChatGPT starts from $5 and DeepSeek starts free (as of September 2026). Always confirm current pricing on each vendor's site.

Do ChatGPT and DeepSeek have free plans?

Both ChatGPT and DeepSeek offer a free plan, so you can try each before paying.

Which is easier to use, ChatGPT or DeepSeek?

Both have a low learning curve.

What are good alternatives to ChatGPT and DeepSeek?

Other chat assistants tools worth comparing include Genspark, Perplexity and Consensus.

Alternatives

Other chat assistants tools to compare

AI agent workspace ('Super Agent') for research, slides, sheets, calls and content generation.

Free planFrom $24.99/mo

AI search engine that answers questions from peer-reviewed scientific papers.

Free planFrom $20/mo