Perplexity is an AI-powered answer engine that cites its sources. This guide covers how Perplexity works, Perplexity Pro and Perplexity Comet, pricing, the API, and how it compares to Google and other AI chatbots.

Grok 4 is xAI's latest frontier AI model, created under Elon Musk's xAI with deep integration into X (formerly Twitter). This guide explains its architecture, pricing, API usage, and how it compares to Claude and GPT-5.

Artifact is Claude's dedicated workspace for generated code, documents, diagrams, and interactive apps. This guide explains what Artifacts are, how they work, practical examples, and how they compare to ChatGPT Canvas.

Claude Haiku 4.5 is Anthropic's fast, affordable AI model in the Claude 4.5 family. This guide explains its architecture, pricing, API usage, and how it compares to Opus 4.6 and Sonnet 4.6.

OpenAI, headquartered in San Francisco, develops ChatGPT, GPT-5, Sora, DALL-E, and more. This comprehensive guide covers the company's history, products, CEO Sam Altman, Microsoft partnership, and how it compares to Anthropic.

Computer Use lets Anthropic's Claude see screenshots and control mouse, keyboard, and applications like a human. This guide covers architecture, API setup, OSWorld 72.5% benchmark, real use cases, and how it compares to RPA.

Claude Sonnet 4.6, released by Anthropic in February 2026, scores 79.6% on SWE-bench Verified with a 1M-token context window. This complete guide explains benchmarks, pricing, API usage, and how it compares to Opus 4.5 and GPT-5.

An AI Agent is an autonomous AI system that achieves goals through a continuous planning, execution, evaluation, and improvement cycle. Learn how AI agents work, how they differ from generative AI, and explore practical use cases and frameworks.

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.