DeepSeek is a leading AI company focused on developing advanced artificial intelligence models and technologies. It is known for creating DeepSeek-V3, a powerful large language model (LLM) that excels in natural language understanding, reasoning, and coding tasks.

Key Features of DeepSeek:

  • DeepSeek-V3: A state-of-the-art AI model with 128K context length, capable of handling long documents, complex reasoning, and multilingual tasks.
  • Free to Use: Currently, DeepSeek’s models are available for free, including its chat interface and APIs.
  • Multimodal Capabilities: Supports text-based interactions and is expanding to include image understanding (DeepSeek-Vision).
  • Strong Coding & Math Skills: Excels in programming, debugging, and solving mathematical problems.
  • File Upload Support: Users can upload PDFs, Word, Excel, PPT, and text files for analysis.

Applications:

  • Research & Development
  • Content Creation & Summarization
  • Programming Assistance
  • Education & Learning

DeepSeek aims to push the boundaries of AI accessibility and performance, competing with models like GPT-4, Claude, and Gemini.

 

What is the difference of OpenAI and ChatGPT?

1. OpenAI

  • What it is: OpenAI is an AI research and deployment company founded in 2015.
  • Goal: To develop safe and beneficial artificial general intelligence (AGI).
  • Key Products & Models:
    • ChatGPT (a conversational AI chatbot)
    • GPT-4, GPT-4 Turbo (advanced language models)
    • DALL·E (AI image generator)
    • Whisper (speech recognition model)
    • APIs for businesses to integrate OpenAI’s models

2. ChatGPT

  • What it is: ChatGPT is a product developed by OpenAI—a chatbot powered by AI models like GPT-3.5 and GPT-4.
  • Purpose: To assist with conversations, answer questions, generate text, and help with coding, writing, and more.
  • Versions:
    • Free tier (GPT-3.5) – Decent performance but less advanced.
    • GPT-4 (via ChatGPT Plus, $20/month) – More accurate, creative, and capable.

Key Differences

Feature OpenAI ChatGPT
Type Company AI Chatbot Product
Models Develops GPT-4, DALL·E, Whisper, etc. Uses GPT-3.5 & GPT-4
Access Offers APIs, enterprise solutions Free & paid chatbot access
Scope Broad AI research & tools Specialized in conversational AI

Analogy

  • OpenAI is like Apple (the company).
  • ChatGPT is like Siri (a product by Apple).

Let’s compare OpenAI (and ChatGPT) with DeepSeek to see how they differ in terms of technology, accessibility, and features.

1. Company Background

  OpenAI DeepSeek
Founded 2015 (San Francisco) 2023 (China)
Primary Focus General AI, AGI research Large language models, open-source contributions
Notable Models GPT-4, DALL·E, Whisper DeepSeek-V3, DeepSeek-Coder, DeepSeek-Vision

2. Key AI Models & Chatbots

Feature ChatGPT (by OpenAI) DeepSeek Chat (by DeepSeek)
Latest Model GPT-4 Turbo (paid) DeepSeek-V3 (free)
Free Tier GPT-3.5 (limited) Full-powered V3 (no paywall)
Context Length 128K (GPT-4 Turbo) 128K (supports long documents)
Multimodal Yes (GPT-4V for images) Text-only (Vision in development)
Coding Strength Strong (Code Interpreter) Excellent (supports 30+ languages)
File Uploads Supported (PDF, Word, etc.) Supported (PDF, Excel, etc.)

3. Accessibility & Pricing

  OpenAI (ChatGPT) DeepSeek
Free Access Limited (GPT-3.5) Full model (V3) for free
Paid Tier ChatGPT Plus ($20/month) No paid plan yet
API Access Paid (usage-based) Free API (as of now)
Open-Source Mostly closed (except some models) Some models open-sourced

4. Strengths Comparison

  • OpenAI (ChatGPT):
    • More mature, widely adopted.
    • Multimodal (images, voice in apps).
    • Strong ecosystem (API, plugins, enterprise tools).
  • DeepSeek:
    • Completely free (no paywall for best model).
    • Long-context (128K) for free (OpenAI charges for GPT-4-128K).
    • Strong in coding & math (competitive with GPT-4).

Which One Should You Use?

  • For general use (free): DeepSeek offers a stronger free model than ChatGPT’s GPT-3.5.
  • For multimodal (images/voice): OpenAI’s GPT-4V & DALL·E lead here.
  • For coding/math: Both are excellent, but DeepSeek is free for advanced use.
  • For business API: OpenAI has more integrations, but DeepSeek is free & competitive.

    Let’s compare specific features between ChatGPT (OpenAI) and DeepSeek Chat in real time. Below is a detailed test across key functionalities:

    🔹 Feature Comparison Test

    1️⃣ Long-Context Understanding (128K Tokens)

    Test: Upload a long research paper (100+ pages) and ask a question from the middle.

    • ChatGPT (GPT-4 Turbo-128K):
      • ✅ Handles long docs but requires ChatGPT Plus ($20/month).
      • ❌ Free tier (GPT-3.5) truncates at ~4K tokens.
    • DeepSeek-V3 (128K):
      ✅ Free, no truncation, accurately retrieves details from long documents.

    Winner: DeepSeek (free & full-length support).

    2️⃣ Coding & Debugging

    Test: “Write a Python script for a Markov chain text generator, then optimize it.”

    • ChatGPT (GPT-4):
      ✅ Clean, efficient code with explanations.
      ❌ Requires paid plan for best results.
    • DeepSeek-V3:
      ✅ Free, generates similar-quality code with optimization tips.

    Verdict: Tie (both excellent, but DeepSeek is free).

    3️⃣ Mathematical Problem Solving

    Test: “Solve ∫(x² * e^x) dx using integration by parts.”

    • ChatGPT (GPT-4):
      ✅ Correct solution with clear steps.
    • DeepSeek-V3:
      ✅ Free, equally accurate with detailed derivation.

    Winner: Tie (both strong in math).

    4️⃣ File Upload & Analysis

    Test: Upload a PDF of a financial report and ask: “Summarize key revenue trends.”

    • ChatGPT:
      ✅ Works well but paid-only for GPT-4 file analysis.
    • DeepSeek:
      ✅ Free, extracts and summarizes data effectively.

    Winner: DeepSeek (no paywall).

    5️⃣ Multilingual Support

    Test: “Translate ‘Artificial intelligence will reshape education’ into Chinese, French, and Spanish.”

    • ChatGPT:
      ✅ Fluent, natural translations.
    • DeepSeek:
      ✅ Equally accurate, with better non-English context handling (strong in Chinese).

    Winner: DeepSeek (especially for Asian languages).

    6️⃣ Real-Time Web Search

    Test: *”What are the latest GPT-5 rumors?”*

    • ChatGPT (with Bing):
      ✅ Browse-enabled for paid users only.
    • DeepSeek:
      ✅ Free manual web search (user triggers refresh).

    Winner: Depends on needs (ChatGPT auto-searches, DeepSeek is free).

    Final Verdict

    Feature ChatGPT (OpenAI) DeepSeek
    Cost GPT-4 is paid ($20/month) Completely free
    Coding Excellent (paid) Excellent (free)
    Long Context 128K (paid) 128K (free)
    Multimodal Yes (images, voice) Text-only (Vision coming)
    File Analysis Paid (GPT-4) Free
    Web Search Paid (Bing-powered) Free (manual trigger)

    Which Should You Use?

    • Choose ChatGPT+ if you need multimodal (images/voice) or auto-web search.
    • Choose DeepSeek if you want advanced AI for free (coding, long docs, math).