ChatGPT
by OpenAI · chatgpt.com ↗
Conversational AI assistant from OpenAI, currently powered by the GPT-6 Astra model family, with chat, coding, agents, and multimodal features.
chatbot llm multimodal
- Category
- AI Assistants
- Business model
- Freemium
- Availability
- Global
- Launched
- 2022-11
- Record updated
- 2026-09-04
- Founded
- 2015
- Headquarters
- US
- Canonical URL
- https://globalaiproductindex.com/products/chatgpt/
Overview
ChatGPT is OpenAI's general-purpose AI assistant for writing, coding, analysis, and everyday questions. In September 2026 OpenAI introduced GPT-6 Astra as the current flagship model family in ChatGPT and the API. The product is available on the web, in mobile and desktop apps, and through an API. A free tier is offered alongside Plus, Pro, Business, and Enterprise plans that add newer models, higher usage limits, and extra tools.
Key features
- Chat and reasoning on OpenAI's GPT-6 Astra model family
- Multimodal input and output, including images, files, and voice
- Code generation, debugging help, and agentic coding tools
- Web browsing, custom GPTs, and longer-running agent tasks
Use cases
- Drafting and editing text such as emails, articles, and summaries
- Programming assistance, from writing code to debugging
- Research, brainstorming, and multi-step agent tasks
Pricing
A free tier is available; ChatGPT Plus, Pro, Business, and Enterprise plans add newer models such as GPT-6 Astra, higher usage limits, and administrative controls.
Frequently asked questions
Is ChatGPT free to use?
Yes. ChatGPT offers a free tier; paid plans such as ChatGPT Plus and Pro add newer models, including GPT-6 Astra, and higher usage limits.
Who develops ChatGPT?
ChatGPT is developed by OpenAI, a US-based AI company founded in 2015.
What is GPT-6 Astra?
GPT-6 Astra is OpenAI's flagship model family introduced in September 2026 for ChatGPT and the API, succeeding earlier GPT-5-class models.
Similar products
- Apple Intelligence — Apple's on-device personal intelligence system, built into iPhone, iPad, Mac, and other Apple products, with writing tools, image features, and a more capable Siri.
- Character.AI — Platform for chatting with user-created AI characters and personalities.
- ChatGLM — Zhipu AI's conversational assistant (Qingyan) built on the GLM family of models.
- ChatGPT Atlas — Web browser from OpenAI with ChatGPT built in for summarizing pages, answering questions, and completing tasks in an agent mode.
- Claude — AI assistant from Anthropic designed for helpful, harmless, and honest dialogue, with the Claude Fable and Mythos 5.1 model family for long-document reasoning and coding.
- Dia — AI browser from The Browser Company, acquired by Atlassian, with an assistant that chats about and works across open tabs.
Sources
This record was last reviewed on 2026-09-04.
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