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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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chat
research
coding
image
video
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meeting
design
productivity
audio
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Perplexity
S
OpenRouter
S
GitHub Copilot
B
Udio
A
TaglineAI search done right. Cited answers, not chat theater.One API, every model. Pay-as-you-go, no subscriptions.Microsoft/GitHub's autocomplete. Deep VS Code + JetBrains integration.Suno's main rival. Often better on instrumental nuance.
Categoryresearchdev platformcodingaudio
PricingFree + $20/mo ProPay per token — model-dependentFree (limited) + $10/mo Pro + $19/mo BusinessFree + $10-$30/mo
Best forReplacing Google for any question where you want a cited answer in seconds.Developers experimenting across models. Apps that want fallback logic.Teams with GitHub already. Devs who don't want to change IDEs.Musicians comparing AI outputs. Anyone who didn't click with Suno.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • 300+ models from one endpoint
  • Automatic fallbacks between providers
  • No subscription — just pay what you use
  • Great enterprise story
  • Works in your existing IDE
  • Chat + autocomplete
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Slight markup over direct API
  • Some provider features not exposed
  • Less agentic than Cursor/Claude Code
  • Model quality varies
  • Same copyright gray zone as Suno
  • Ecosystem smaller
Kai's verdictS-tier for search. I use it before Google now. If you're still Googling everything, try this for a week.S-tier for model-shopping. I use this for every prototype before committing.B-tier. Solid for autocomplete but the category moved past it. Pick Cursor unless you can't.A-tier. Genuinely different vibe from Suno — worth trying both for a month.
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