Extended Thinking is a reasoning enhancement feature for Anthropic's Claude AI that uses an internal thinking block for step-by-step reasoning before generating answers. Learn how it works, how to implement it with the API, and how it differs from Chain of Thought prompting.

DeepSeek is a family of open-source large language models using Mixture-of-Experts (MoE) architecture, delivering GPT-4 level performance at a fraction of the cost. Learn about its architecture, usage, and how it compares to ChatGPT.

Claude Opus 4.6 is Anthropic's flagship LLM released February 2026. Learn about Agent Teams, 1M token context, Adaptive Thinking, benchmark results, API usage examples, and how it compares to GPT-5.

A complete guide to Chain of Thought: definition, how it works, advantages, disadvantages, comparisons, and real-world use cases.

A complete guide to Gemini: definition, how it works, advantages, disadvantages, comparisons, and real-world use cases.

ChatGPT is OpenAI's conversational AI product, launched in November 2022 and now powered by the GPT-5 model family. It handles text, images, voice, files, and tool use. Learn how to use it, pricing, and how it compares to Claude and Gemini.

GPT-5 is OpenAI's latest generation of general-purpose large language models, featuring a unified smart-plus-reasoning router, five-level reasoning effort control, and a 1M+ token context. Learn the GPT-5.2/5.3-Codex/5.4 lineage, how to use it in ChatGPT, and how it compares to Claude.

Claude Code is Anthropic's agentic coding tool that lives in your terminal, IDE, and browser, powered by the Claude model family. Learn how it works, how it differs from Cursor and GitHub Copilot, and how to get started with MCP integrations.

Anthropic is an American AI safety company founded in 2021 by former OpenAI researchers Dario and Daniela Amodei. It develops the Claude family of models and pioneered Constitutional AI and Responsible Scaling Policy. Here's an overview of its origins, products, and philosophy.