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Side-by-side: what they do, what they cost, what Kai actually thinks. Pass up to 4 tools via ?tools=claude,chatgpt,gemini.
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Dev Platform
Agents
Voice
Video
Audio
Research
Coding
Chatbots
Image
Meetings
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Productivity
Writing
Data
Marketing
Education
OpenRouter
S
Cline
A
DALL-E 3
B
Perplexity
S
TaglineOne API, every model. Pay-as-you-go, no subscriptions.Open-source VS Code agent. Reads + writes + runs.OpenAI's image model. Built into ChatGPT Plus.AI search done right. Cited answers, not chat theater.
CategoryDev PlatformCodingImageResearch
PricingPay per token — model-dependentFree (open source) + your API costsIncluded with ChatGPT Plus $20/moFree + $20/mo Pro
Best forDevelopers experimenting across models. Apps that want fallback logic.VS Code users who want agentic coding without changing IDEs.ChatGPT Plus users who want images without paying extra.Replacing Google for any question where you want a cited answer in seconds.
Strengths
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Free extension for VS Code
  • Plan + Act modes
  • Model-agnostic (Claude, GPT, local)
  • Sees terminal output and iterates
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
Weaknesses
  • Slight markup over direct API
  • Some provider features not exposed
  • Can burn tokens fast if not watched
  • Less polished than Cursor
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Not a general chatbot
  • Answers can be shallow on complex topics
Kai's verdictS-tier for model-shopping. I use this for every prototype before committing.A-tier. Best free agentic option in VS Code. Use with Claude for best results.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.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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