Every resource founders actually use, in one library.

What founders use most, ranked by how many answers lean on it.

1. A menu of AI-specific metrics beyond DAUs, from acceptance rate to cost per active user. mixpanel.com Article · How Founders Use AI 30+ AI product metrics to track today Mixpanel
2. Includes the killer diagnostic: compare AI-user retention curves against your product baseline. institutepm.com Guide · How Founders Use AI AI Product Metrics That Actually Matter Institute of Product Management
3. Connects AI feature metrics to the board-level numbers investors ask about. thesaasbarometer.substack.com Article · How Founders Use AI AI Metrics that Matter in 2025 SaaS Barometer
4. A setup-to-dashboards walkthrough for self-hosting the free stack. prismix.dev Guide · How Founders Use AI Langfuse Guide: Open-Source LLM Observability and Tracing Prismix
5. An India-based engineering firm's field guide to the metrics and tooling that matter. cloudraft.io Article · How Founders Use AI LLM Observability: Monitoring Large Language Models CloudRaft (India)
6. Monitoring and optimization together, from an India-founded AI quality platform. getmaxim.ai Article · How Founders Use AI How to Reduce LLM Cost and Latency: A Practical Guide for Production AI Maxim AI (India)
7. Updated adoption frameworks that treat AI feature usage as its own funnel. userpilot.com Article · How Founders Use AI How to Measure Product Adoption: Metrics for Human Users and AI Agents Userpilot
8. Useful for B2B founders whose buyers now ask for AI usage reporting. capably.ai Article · How Founders Use AI Measuring AI Adoption Metrics Capably
9. Why accuracy alone is a vanity metric and what to track instead. stackai.com Article · How Founders Use AI Measuring Enterprise AI Success: Essential KPIs Beyond Accuracy StackAI
10. The Wharton professor's definitive framing of the shift from searching for links to delegating research. oneusefulthing.org Article · How Founders Use AI The End of Search, The Beginning of Research Ethan Mollick
11. The primary source on how ChatGPT blends live web results with a conversational interface. openai.com Article · How Founders Use AI Introducing ChatGPT search OpenAI
12. A hands-on, regularly updated comparison of the two tools founders reach for first. zapier.com Article · How Founders Use AI Perplexity vs. ChatGPT: Which AI tool is better? Zapier
13. Side-by-side query tests that show concretely when AI search saves time and when Google still wins. felloai.com Article · How Founders Use AI Google Search vs. Perplexity: The Best Search Tool for Daily Use in 2025 Fello AI
14. A structured teardown of how the answer-engine experience differs from the link-list experience. llmrefs.com Article · How Founders Use AI Perplexity vs Google: A Head-to-Head SEO and UX Analysis LLMrefs
15. The official quick-start covering Search, Research and Labs modes so you use the right one per task. perplexity.ai Guide · How Founders Use AI Getting Started with Perplexity Perplexity
16. The India moment for AI search: Perplexity Pro bundled free for Airtel users, worth checking if you qualify. airtel.in Article · How Founders Use AI Airtel partners with Perplexity: Pro for 360mn customers Airtel
17. Why web-grounded Claude changed the calculus for founders who prefer Claude's reasoning. venturebeat.com Article · How Founders Use AI Anthropic just gave Claude a superpower: real-time web search VentureBeat
18. The official how-to including query limits per plan, so you spend your monthly runs wisely. help.openai.com Guide · How Founders Use AI Deep research in ChatGPT (Help Center) OpenAI
19. Google's launch post explaining the plan-approve-refine flow Gemini pioneered. blog.google Article · How Founders Use AI Try Deep Research and our new experimental model in Gemini Google
20. Short official playbook on editing the research plan and asking for report revisions. blog.google Guide · How Founders Use AI How to use Google's Deep Research: official tips Google
21. A widely shared operator thread: use a strong model to write your deep research prompt first. x.com Thread · How Founders Use AI How I'm using Deep Research (prompting walkthrough) BuccoCapital Bloke
22. A fill-in-the-blanks system that reliably turns vague questions into report-grade briefs. ahmadosman.com Guide · How Founders Use AI My Ultimate DeepResearch Prompt Builder Template Ahmad Osman
23. A startup operator runs the same $5M ARR brief through both tools and shows the raw outputs. gregisenberg.com Article · How Founders Use AI ChatGPT vs Perplexity Deep Research: business ideas test Greg Isenberg
24. A prompting-focused comparison that shows how brief quality changes the winner. newsletter.learnprompting.org Article · How Founders Use AI Deep Research: ChatGPT vs. Gemini. Who wins? Learn Prompting

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