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How can you assess product value—especially for early-stage products? Or, more commonly, for individual features within a broader product?

— Do they deliver real value to users?
— Do they lay the groundwork for future growth?

There’s no single answer, but there are several well-known frameworks that can help you make an informed judgement. We’ve selected four of the most popular ones and turned them into a cheat sheet you can print on a single A4 page, pin next to your desk, save for future reference, or share with your team.

One of the key areas where AI companies are competing is “Deep Research,” where you give an AI agent a task and it goes and searches the web for relevant information, giving you back a detailed report that would have taken you hours to accomplish.

Currently, OpenAI, Grok, Perplexity, and Gemini provide Deep Research tools (there are also open-source platforms like Open Deep Search and research-focused products such as Manus AI). When used well, these tools can become a superpower for product managers in product and market research.