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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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Claude
S
Gemini
A
Udio
A
Devin
A
TaglineAnthropic's flagship — best reasoning + longest useful context.Google's answer. Best integrated with Workspace + free for a lot.Suno's main rival. Often better on instrumental nuance.Cognition Labs' autonomous coding engineer.
CategoryChatbotsChatbotsAudioAgents
PricingFree + $20/mo Pro + team/enterpriseFree + $20/mo Advanced (bundled with 2TB Drive)Free + $10-$30/mo$500/mo
Best forLong writing, code, careful thinking, documents over 50 pages.Anyone already on Google, research tasks, summarizing long documents.Musicians comparing AI outputs. Anyone who didn't click with Suno.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Native Google Workspace integration
  • Very long context (1M+)
  • Deep Research feature
  • Free tier is generous
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Works like an engineer — takes Slack tasks, opens PRs
  • Handles multi-hour engineering work
  • Reports back with what it did
Weaknesses
  • Image generation is weak
  • No native web search on all tiers
  • Writing quality trails Claude
  • Over-refusals on edge content
  • UI is cluttered
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.A-tier. The Deep Research feature is genuinely useful. Don't sleep on it if you're already paying Google.A-tier. Genuinely different vibe from Suno — worth trying both for a month.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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