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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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S
Claude
S
DALL-E 3
B
Udio
A
TaglineRun any open-source AI model with an API call.Anthropic's flagship — best reasoning + longest useful context.OpenAI's image model. Built into ChatGPT Plus.Suno's main rival. Often better on instrumental nuance.
CategoryDev PlatformChatbotsImageAudio
PricingPay per second of computeFree + $20/mo Pro + team/enterpriseIncluded with ChatGPT Plus $20/moFree + $10-$30/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).Long writing, code, careful thinking, documents over 50 pages.ChatGPT Plus users who want images without paying extra.Musicians comparing AI outputs. Anyone who didn't click with Suno.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Best-in-class writing + nuanced reasoning
  • 1M context on Opus
  • Artifacts for code/docs
  • Lowest hallucination rate in my testing
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • Strong instrumentals + genre fidelity
  • Extend/remix features
  • Good lyric understanding
Weaknesses
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Image generation is weak
  • No native web search on all tiers
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Same copyright gray zone as Suno
  • Ecosystem smaller
Kai's verdictS-tier for open-source model APIs. The default in this space.S-tier for reasoning and writing. If you only pay for one chatbot, pay for this one — especially for long work.B-tier standalone, A-tier value if you already pay ChatGPT. Don't pay for it separately.A-tier. Genuinely different vibe from Suno — worth trying both for a month.
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