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S
Elicit
S
ChatGPT Operator
B
Perplexity
S
TaglineRun any open-source AI model with an API call.AI research assistant for academic literature.OpenAI's browser agent. Clicks and types on websites for you.AI search done right. Cited answers, not chat theater.
Categorydev platformresearchagentsresearch
PricingPay per second of computeFree + $12-$42/moIncluded with ChatGPT Pro $200/moFree + $20/mo Pro
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Grad students, researchers, anyone doing literature reviews.Power users willing to pay $200/mo for a browser bot.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • 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
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Academic-only
  • Can hallucinate citations — verify everything
  • Slow vs doing it yourself
  • Breaks on complex auth flows
  • $200/mo gate
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for open-source model APIs. The default in this space.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 search. I use it before Google now. If you're still Googling everything, try this for a week.
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