For a creative idea generation tool with a chat interface and AI smarts, ChatGPT is a good starting point. It's got a simple interface for helping you with a wide range of tasks, including brainstorming and idea generation. It's free to use, so you can try it out for immediate needs without paying a penny upfront.
Another good option is Seenapse, which marries human creativity with AI to generate hundreds of ideas in a flash. It works in more than 40 languages and can be integrated with Google Docs for easy collaboration. Seenapse is geared for creative directors and teams who want to inject outside-the-box thinking into their brainstorming.
If you're looking for a tool geared specifically for creative agencies and brands, Daydrm offers a variety of AI tools, including multi-output generators and strategic brief generators. The platform is designed to help streamline the creative process, and it offers a variety of pricing tiers to suit different needs.
For a broader AI suite with a chat interface, GAIM offers tools for business help, creative ideas and workflow automation. It includes image generators and content creation tools, as well as social media integration, so it's a good option for boosting creativity and productivity. GAIM offers a free plan and a variety of subscription tiers for individuals and businesses.