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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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Perplexity
S
OpenAI Voice / Realtime
S
Udio
A
Claude Code
S
TaglineAI search done right. Cited answers, not chat theater.ChatGPT's voice + the Realtime API for developers.Suno's main rival. Often better on instrumental nuance.Anthropic's CLI agent. Opus-powered, operates on your repo directly.
CategoryResearchVoiceAudioCoding
PricingFree + $20/mo ProVoice included with ChatGPT Plus; Realtime API by usageFree + $10-$30/moPart of Claude Pro/Max/Team plans
Best forReplacing Google for any question where you want a cited answer in seconds.Voice chat users, developers building voice agents on OpenAI.Musicians comparing AI outputs. Anyone who didn't click with Suno.Developers who want an agent, not autocomplete. Large refactors, tests, docs.
Strengths
  • Sources every claim
  • Fast, current answers
  • Pro Search runs multi-step research
  • Spaces for persistent context
  • Advanced Voice Mode feels genuinely conversational
  • Realtime API enables true two-way voice apps
  • Built into ChatGPT
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
  • Runs locally, edits your actual files
  • Strong on large codebases with 1M context
  • Great at multi-step tasks
Weaknesses
  • Not a general chatbot
  • Answers can be shallow on complex topics
  • Pricey for production apps
  • Less voice variety than ElevenLabs
  • Platform lock-in
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Terminal-based — learning curve
  • Can't be used without Claude subscription
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 conversation. A-tier for TTS. Complement to ElevenLabs, not replacement.A-tier. Genuinely different vibe from Suno — worth trying both for a month.S-tier if you live in the terminal. Different shape than Cursor — complementary, not replacement.
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