DeepSeek vs ChatGPT

A side-by-side look at DeepSeek and ChatGPT — pricing, features and where each one wins. Both are reviewed independently on Curata AI.

DeepSeekChatGPT
SummaryOpen-weight reasoning models with a very low API cost.Conversational AI assistant for writing, coding and research.
PricingFreemiumFreemium
CategoryChatWriting
PlatformsWeb, API, Self-hostedWeb, iOS, Android, macOS, Windows
Key features
  • Open Weights
  • Reasoning Model
  • Cheap API
  • Web Chat
  • Web Browsing
  • Code Interpreter
  • Image Generation
  • Custom GPTs
  • Voice Mode
  • File Uploads
Pros
  • Extremely cheap API
  • Open weights
  • Strong on math and code
  • Free web chat
  • Extremely versatile across tasks
  • Fastest ecosystem of integrations and GPTs
  • Reliable uptime and mobile apps
  • Strong at code and structured output
  • Improves noticeably every quarter
Cons
  • Basic web UI
  • Data policy concerns for enterprise
  • Less multimodal than closed models
  • Can still hallucinate facts confidently
  • Free-tier limits are hit quickly on hard tasks
  • Not the best at very long documents versus Claude

Read the full DeepSeek review

DeepSeek made headlines by releasing open-weight reasoning models that rival closed frontier labs at a fraction of the cost. For developers, DeepSeek's API is one of the cheapest ways to run advanced reasoning at scale. The chat app is functional but plain; the real value is in the models themselves, which can be self-hosted or accessed through many third-party providers. Excellent for math, code and structured reasoning where cost per token matters.

Read the full ChatGPT review

ChatGPT by OpenAI is the most widely adopted general-purpose AI assistant. It handles drafting, editing, coding, document analysis, live web browsing, image generation and voice conversations from a single interface. Because the ecosystem of Custom GPTs and integrations is so deep, most professionals treat it as their default thinking partner — the first tab they open when a task is ambiguous. Free users get access to a strong baseline model with meaningful daily limits; paid tiers unlock the newest reasoning models, higher usage, larger file uploads and priority speed. It is not the best at every specialty, but the breadth, reliability and pace of updates make it the safest starting point for anyone new to AI.