AI Assistant Agents

AI-powered answer engine combining real-time web search with large language models. Provides cited, source-backed answers with follow-up question suggestions. Popular for research and fact-checking workflows.

Google DeepMind's multimodal AI agent with native understanding of text, images, audio, and video. Deeply integrated with Google Workspace, Search, and Android. Available as Gemini 2.5 Pro with 1M token context.

Anthropic's AI assistant built with constitutional AI principles. Excels at long-context analysis (200K tokens), coding, reasoning, and nuanced instruction-following. Known for safety-first design and honest uncertainty communication.

OpenAI's flagship conversational AI agent. Supports GPT-4o, code execution, web browsing, DALL-E image generation, file analysis, and custom GPTs. The most widely adopted AI assistant with 200M+ weekly users.