ChatGPT Review

🎯 Our Verdict

ChatGPT is the most versatile AI assistant available, excelling at reasoning, code generation, and multi-modal tasks. However, it is not the best tool for research requiring verified citations. Use ChatGPT for complex analysis and content creation; pair it with Perplexity for cited research.

ChatGPT is a general-purpose AI assistant developed by OpenAI and publicly released on November 30, 2022. It quickly became the fastest-growing consumer application in history, reaching one million users within five days of launch and an estimated 100 million monthly active users by January 2023. By late 2025, ChatGPT had grown to approximately 800 million weekly active users. The platform runs on OpenAI's GPT series of large language models, with GPT-5.5 serving as the default for paid users as of early 2026.

ChatGPT operates as both a web and mobile application, supporting text-based conversations, voice interaction, image analysis, and image generation through integrated DALL-E technology. The system processes user prompts by generating responses through next-token prediction, refined through pre-training on large text corpora followed by supervised fine-tuning and reinforcement learning from human feedback (RLHF). Specialized capabilities include Agent Mode for multi-step task execution, Deep Research for comprehensive analysis with citation support, Codex for software engineering tasks in sandboxed environments, Sora for video generation, and over 60 app connectors for integrating with external services.

While ChatGPT is not purpose-built for academic research or code editing, its broad reasoning capabilities make it one of the most versatile tools available. Users apply it to brainstorming, data analysis, content creation, coding assistance, translation, and complex problem-solving across virtually every domain. OpenAI also developed Codex as a specialized suite of AI-driven coding agents built on GPT-5 variants, supporting autonomous code generation, testing, and deployment through sandboxed execution environments.

Pricing spans several tiers. The free plan provides access to lighter models with rate limits (approximately 10 messages every five hours for advanced models before falling back to simpler ones). ChatGPT Plus costs $20 per month and includes priority access and higher usage limits. Pro offers $200 per month with extended capabilities. Team plans ($25 to $30 per user per month) and Enterprise plans (custom pricing) add workspace management, SSO, audit logs, and data privacy guarantees that ensure business conversations are not used for model training. OpenAI's API provides separate programmatic access to GPT models for developers building custom applications.

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