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.

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.