Compare AI tools

	Elicit S	ChatGPT Operator B	OpenRouter S	Grok A
Tagline	AI research assistant for academic literature.	OpenAI's browser agent. Clicks and types on websites for you.	One API, every model. Pay-as-you-go, no subscriptions.	xAI's chatbot. Real-time X/Twitter data + fewer refusals.
Category	Research	Agents	Dev Platform	Chatbots
Pricing	Free + $12-$42/mo	Included with ChatGPT Pro $200/mo	Pay per token — model-dependent	Free + $30/mo SuperGrok + included with X Premium
Best for	Grad students, researchers, anyone doing literature reviews.	Power users willing to pay $200/mo for a browser bot.	Developers experimenting across models. Apps that want fallback logic.	Breaking news, live event tracking, users already on X.
Strengths	Searches 125M+ papers Extracts + synthesizes findings across papers Systematic review workflow	Actually uses websites — fills forms, clicks, checks out Built into ChatGPT Good for repetitive web tasks	300+ models from one endpoint Automatic fallbacks between providers No subscription — just pay what you use	Live access to X posts for real-time events Less restrictive on edgy questions Fast inference on Grok-3 and up
Weaknesses	Academic-only Can hallucinate citations — verify everything	Slow vs doing it yourself Breaks on complex auth flows $200/mo gate	Slight markup over direct API Some provider features not exposed	Writing quality trails Claude/ChatGPT Political bias debates Ecosystem is just X
Kai's verdict	S-tier for academic research. Nothing else comes close for systematic reviews.	B-tier. Still early. Manus is more flexible for less money.	S-tier for model-shopping. I use this for every prototype before committing.	A-tier for real-time. B-tier for everything else. Worth checking when news breaks.
Link	Open →	Open →	Open →	Open →