Claude
by Anthropic · claude.ai ↗
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.
chatbot llm
- Category
- AI Assistants
- Business model
- Freemium
- Availability
- Global
- Launched
- 2023-03
- Record updated
- 2026-09-04
- Founded
- 2021
- Headquarters
- US
- Canonical URL
- https://globalaiproductindex.com/products/claude/
Overview
Claude is Anthropic's AI assistant for helpful, reliable dialogue with strong reasoning over long documents and code. In September 2026 Anthropic introduced Claude Fable 5.1 and Claude Mythos 5.1 as the current flagship models, succeeding the Opus 4.1 line. Claude is available on the web, in mobile and desktop apps, and through an API. A free tier is offered alongside Pro, Team, and Enterprise plans that add higher usage limits and newer models.
Key features
- Long context windows for analyzing books, reports, and codebases
- Claude Fable 5.1 and Mythos 5.1 for writing, coding, and structured reasoning
- File and image understanding in chat
- Projects, artifacts, and agentic coding workflows
Use cases
- Summarizing and questioning long documents and contracts
- Software development assistance and code review
- Careful drafting where tone and accuracy matter
Pricing
A free tier is available; Claude Pro, Team, and Enterprise plans add higher usage limits and access to newer models such as Claude Fable 5.1 and Mythos 5.1.
Frequently asked questions
Is Claude free to use?
Yes. Claude offers a free tier; paid plans such as Claude Pro add higher usage limits and access to newer models.
Who develops Claude?
Claude is developed by Anthropic, a US-based AI company founded in 2021.
What are Claude Fable and Mythos 5.1?
Claude Fable 5.1 and Claude Mythos 5.1 are Anthropic's September 2026 flagship models, succeeding the Opus 4.1 generation for chat, coding, and long-context work.
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 — Conversational AI assistant from OpenAI, currently powered by the GPT-6 Astra model family, with chat, coding, agents, and multimodal features.
- ChatGPT Atlas — Web browser from OpenAI with ChatGPT built in for summarizing pages, answering questions, and completing tasks in an agent mode.
- 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.
Machine-readable record: /api/products/claude.json · Spot an error? Suggest a correction