Spent the last month testing AI cofounder tools after struggling to find a technical partner. Built a guide comparing what actually works vs marketing hype. Covered validation tools, dev assistants, and marketing AI. Most cost $20-100/month vs $5k+ for consultants. Spoiler alert: AI can help, but they wont replace human connection. Also, Claude can get you 90% of the way there by itself. [AI Cofounder: The Complete Guide for Solo Founders (2025)](https://wecofounder.com/articles/ai-cofounder-guide)