ChatGPT

ChatGPT is a conversational AI developed by OpenAI, providing a user-friendly interface for various tasks like writing, brainstorming, and learning. It offers different tiers, including free, Plus, and Pro, with varying access to advanced models and features. OpenAI also provides an API platform for developers to integrate their AI models into applications, along with enterprise solutions for businesses.

ChatGPT, developed by OpenAI, is a strong match for the 'AI productivity & creativity tools' concept. While it doesn't explicitly offer a 'guided tool interface' with pre-defined forms for 150+ specialized tools, it provides a conversational interface where users can ask for help with writing, learning, brainstorming, and more, which serves a similar purpose of guiding the user. It also offers 'creative presets and styles' through its ability to generate content in various tones and formats based on user prompts. The platform clearly integrates 'multi-model integration' by leveraging different GPT models (GPT-4o, GPT-4.1 mini, OpenAI o3, etc.) for various tasks. Although it doesn't have a 'tool catalog and categories' in the same structured way as described, its conversational nature allows users to explore a wide range of functionalities. User authentication and subscriptions are core to its offering, with free, Plus, and Pro tiers. It also supports search, export, collaboration features (like Canvas), usage analytics for business tiers, multi-language support, mobile responsiveness, in-app resources, and API access.