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The world's most popular AI assistant
ChatGPT is an AI chatbot by OpenAI that can write, code, reason, and converse across almost any topic.
Intelligence Coverage
ChatGPT is a large language model-based chatbot developed by OpenAI. Launched in November 2022, it became the fastest consumer application to reach 100 million users. It supports natural conversation, code generation, essay writing, summarization, translation, math reasoning, and image analysis via its multimodal GPT-4o model. ChatGPT is used by individuals, students, developers, and enterprises worldwide for productivity, creativity, and automation.
Natural language conversations
Code generation & debugging
Image understanding (GPT-4o)
Web browsing & research
Custom GPTs
API access
Voice mode
Canvas for documents
AI Model Training Costs 2026: GPT-4, Gemini & Open Source Benchmarks
Training frontier models remains capital-intensive, and 2026 estimates clarify how compute, data, and energy drive costs and why open-source alternatives reshaped the economics.
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AI Search Engine Statistics 2026: ChatGPT vs Perplexity vs Google
Explore AI search engine statistics for 2026: Perplexity growth, ChatGPT search share, Google AI Overviews impact, and how AI is disrupting the $300B search market.
Read moreChatGPT Statistics 2026: Users, Revenue & Market Share
Comprehensive ChatGPT statistics for 2026 covering user numbers, revenue, market share, usage trends, and growth data. All stats sourced and updated.
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How to Use ChatGPT for SEO: 10 Workflows That Actually Work (2026)
Learn how to use ChatGPT for SEO in 2026. Keyword research, content briefs, meta tags, internal linking, schema markup, and more — with exact prompts.
Read moreHow to Use ChatGPT for Content Marketing in 2026
Learn a repeatable workflow for using ChatGPT in content marketing: research, briefs, drafting, editing and repurposing across every channel you own.
Read moreHow to Use the ChatGPT API: A Beginner's Guide for 2026
Get started with the ChatGPT API: keys, your first request, the chat format, parameters, handling responses and avoiding common beginner mistakes.
Read moreHow to Create Custom GPTs in ChatGPT in 2026
A practical 2026 guide to Custom GPTs: learn how to build a tailored ChatGPT assistant without code step by step, with setup, workflow, and pro tips.
Read moreChatGPT vs Alternatives — Feature Overview
| Capability | ChatGPT | Competitors |
|---|---|---|
| Natural language conversations | ||
| Code generation & debugging | ||
| Image understanding (GPT-4o) | ||
| Web browsing & research | ||
| Custom GPTs | ||
| API access |
Perplexity Pro vs ChatGPT Plus (2026): Best AI Search
Perplexity Pro and ChatGPT Plus compared in 2026 on AI search, citations, model access, features and pricing to choose the best AI research subscription.
Read comparisonGemini 2 vs GPT-4o (2026): Which Flagship Model Wins?
A hands-on 2026 comparison of Google Gemini 2 and OpenAI GPT-4o covering reasoning, multimodal skills, context length, speed and real pricing.
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Claude
Anthropic
Claude is Anthropic's AI assistant built for safe, helpful, and honest conversations with a 200K-token context window.
Gemini
Gemini is Google's flagship AI model family powering Google Search, Workspace, and the standalone Gemini app.
Perplexity
Perplexity AI
Perplexity is an AI search engine that delivers cited, real-time answers by combining LLMs with live web search.
ChatGPT founded
by OpenAI
Natural language conversations
Code generation & debugging
Image understanding (GPT-4o)
Web browsing & research
ChatGPT today
Active platform with 4+ years of development
ChatGPT
ChatGPT is an AI-powered conversational tool designed for users seeking assistance in generating text-based responses, with a freemium pricing model.
GPT4All
Free, privacy-preserving local AI chat app that runs LLMs completely offline.
ChatGPT Writer
Browser extension that drafts emails and messages with AI across Gmail and the web.
RAG (Retrieval-Augmented Generation)
A technique that combines a language model with real-time document retrieval to produce grounded, up-to-date answers.
MCP (Model Context Protocol)
An open standard by Anthropic that lets AI assistants connect to external tools, data sources, and services through a unified protocol.
Agentic AI
AI systems that can autonomously plan, take multi-step actions, use tools, and achieve goals without step-by-step human instruction.
Vector Database
A database purpose-built to store and query high-dimensional vector embeddings, enabling semantic similarity search at scale.
Fine-Tuning
Training a pre-trained language model on a smaller, task-specific dataset to improve its performance on a particular domain or task.
Embeddings
Dense numerical vector representations of text, images, or other data that capture semantic meaning in a form machines can compare.
Prompt Engineering
The discipline of designing and refining input prompts to elicit more accurate, reliable, and useful responses from AI language models.
LLM (Large Language Model)
A deep learning model trained on vast quantities of text that can generate, summarise, translate, and reason about language at human level or above.
AI Intelligence Review
DeepAITool Editorial TeamLast Updated
Jun 2, 2026
Fact Checked
Editorial Standards →Claude Sonnet vs GPT-4o (2026): The Practical Showdown
Comparing Claude Sonnet and GPT-4o in 2026 on writing quality, coding, safety, context and price to help you choose the right everyday AI assistant.
