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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
DALL-E 3
B
Udio
A
Devin
A
TaglineRun any open-source AI model with an API call.OpenAI's image model. Built into ChatGPT Plus.Suno's main rival. Often better on instrumental nuance.Cognition Labs' autonomous coding engineer.
CategoryDev PlatformImageAudioAgents
PricingPay per second of computeIncluded with ChatGPT Plus $20/moFree + $10-$30/mo$500/mo
Best forDevelopers using open-source models (Flux, SDXL, Whisper, etc).ChatGPT Plus users who want images without paying extra.Musicians comparing AI outputs. Anyone who didn't click with Suno.Engineering teams offloading tickets. Ops/platform work.
Strengths
  • Tens of thousands of models (image, video, audio, LLMs)
  • One-line API for any model
  • Cog framework for custom model deploy
  • Excellent prompt understanding
  • Built into ChatGPT — no extra subscription
  • Good at composition + concepts
  • 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
  • Cold starts on less-popular models
  • Pricing gets real at scale
  • Aesthetic ceiling below Midjourney + Ideogram
  • Text rendering worse than Ideogram
  • No fine control
  • Same copyright gray zone as Suno
  • Ecosystem smaller
  • Expensive
  • Best for well-scoped tasks
  • Not for solo hobbyists
Kai's verdictS-tier for open-source model APIs. The default in this space.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.A-tier for the right use case. Not for solo devs. If you manage engineers, try one license.
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