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H is a global foundation model and agentic AI company focused on developing AI agents and automated systems to enhance worker productivity. Their ultimate goal is to achieve full Artificial General Intelligence (AGI).

Perplexity is an AI-powered search and research tool that delivers accurate, well-referenced answers quickly. It combines real-time information access with leading questions to help users obtain focused responses.

DeepSeek is an advanced AI platform offering cost-effective language models for natural language processing and code generation tasks. It provides various models tailored for different applications, including chatbots and coding assistants.

Google Gemini is an advanced AI platform offering multimodal capabilities, including text, image, video, and audio processing. It integrates seamlessly with various Google services to enhance productivity and creativity.

ChatGPT, an OpenAI conversational AI, uses language models to assist with tasks like content creation and coding. OpenAI offers subscription tiers, including a $200/month ChatGPT Pro plan for unlimited access to its latest reasoning model and advanced voice features.