Compare AI tools

	Taskade B	OpenRouter S	Perplexity S	Lex A
Tagline	AI project management with agents for each team.	One API, every model. Pay-as-you-go, no subscriptions.	AI search done right. Cited answers, not chat theater.	Google Docs with an AI collaborator baked in.
Category	Productivity	Dev Platform	Research	Writing
Pricing	Free + $8-$20/user/mo	Pay per token — model-dependent	Free + $20/mo Pro	Free + $12/mo
Best for	Small teams wanting AI baked into project management.	Developers experimenting across models. Apps that want fallback logic.	Replacing Google for any question where you want a cited answer in seconds.	Essays, long-form drafts, thinking on the page.
Strengths	Custom AI agents per project Doc + tasks + kanban in one Affordable for teams	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Sources every claim Fast, current answers Pro Search runs multi-step research Spaces for persistent context	Clean writing UX — distraction-free +++ prompt triggers AI help Collaboration + AI feedback together
Weaknesses	Feature sprawl AI agents need tuning to be useful	Slight markup over direct API Some provider features not exposed	Not a general chatbot Answers can be shallow on complex topics	Less feature-rich than Google Docs AI ceiling below dedicated tools
Kai's verdict	B-tier. Solid product but crowded market. Try it if Notion AI feels too generic.	S-tier for model-shopping. I use this for every prototype before committing.	S-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.	A-tier. Beautiful UX. The writing app I'd pick if I only wrote long-form.
Link	Open →	Open →	Open →	Open →